The Scandinavian Simvastatin Survival Study (also known as the 4S study), was a multicentre, randomized, double-blind , placebo-controlled clinical trial , which provided the initial data that supported the use of the cholesterol-lowering drug , simvastatin , in people with a moderately raised cholesterol and coronary heart disease (CHD); that is people who had previously had a heart attack or angina . The study was sponsored by the pharmaceutical company Merck and enrolled 4,444 people from 94 centres in Scandinavia .
123-584: Before the 4S study, it was not proven that lowering cholesterol could prolong life in people who had CHD. The study concluded that secondary prevention with simvastatin in a high risk group with CHD reduced overall mortality by 30%. Published in The Lancet in 1994, it is considered a "landmark paper". The 4S multicentre, randomized, double-blind , placebo-controlled clinical trial enrolled 4,444 people chosen from 7,027 people who had been followed up for two months after being given dietary advice. The objective of
246-464: A Pap test (to check for cervical cancer ), and screening for osteoporosis . Genetic testing can also be performed to screen for mutations that cause genetic disorders or predisposition to certain diseases such as breast or ovarian cancer . However, these measures are not affordable for every individual and the cost effectiveness of preventive healthcare is still a topic of debate. Preventive healthcare strategies are described as taking place at
369-601: A Pap test every 3–5 years. Finland and Iceland have developed effective organized programs with routine monitoring and have managed to significantly reduce cervical cancer mortality while using fewer resources than unorganized, opportunistic programs such as those in the United States or Canada. In developing nations in Latin America, such as Chile, Colombia, Costa Rica, and Cuba, both public and privately organized programs have offered women routine cytological screening since
492-401: A colonoscopy . Other methods of screening for polyps and cancers include fecal occult blood testing. Lifestyle changes that may reduce the risk of colorectal cancer include increasing consumption of whole grains, fruits and vegetables, and reducing consumption of red meat. Access to healthcare and preventive health services is unequal, as is the quality of care received. A study conducted by
615-499: A "typical Western diet" could often extend life by a decade. Specific protective measures such as water purification , sewage treatment, and the development of personal hygienic routines, such as regular hand-washing, safe sex to prevent sexually transmitted infections , became mainstream upon the discovery of infectious disease agents and have decreased the rates of communicable diseases which are spread in unsanitary conditions. Scientific advancements in genetics have contributed to
738-582: A 10 percent to 30 percent higher risk of cardiovascular disease. Sleep disorders such as sleep-disordered breathing and insomnia , are also associated with a higher cardiometabolic risk. An estimated 50 to 70 million Americans have insomnia, sleep apnea or other chronic sleep disorders . In addition, sleep research displays differences in race and class. Short sleep and poor sleep tend to be more frequently reported in ethnic minorities than in whites. African-Americans report experiencing short durations of sleep five times more often than whites, possibly as
861-630: A 35-40 hours week. A diet high in fruits and vegetables decreases the risk of cardiovascular disease and death . A 2021 review found that plant-based diets can provide a risk reduction for CVD if a healthy plant-based diet is consumed. Unhealthy plant-based diets do not provide benefits over diets including meat. A similar meta-analysis and systematic review also looked into dietary patterns and found "that diets lower in animal foods and unhealthy plant foods, and higher in healthy plant foods are beneficial for CVD prevention". A 2018 meta-analysis of observational studies concluded that "In most countries,
984-493: A beneficial effect. A diet high in trans fatty acids is associated with higher rates of cardiovascular disease, and in 2015 the Food and Drug Administration (FDA) determined that there was 'no longer a consensus among qualified experts that partially hydrogenated oils (PHOs), which are the primary dietary source of industrially produced trans fatty acids (IP-TFA), are generally recognized as safe (GRAS) for any use in human food'. There
1107-569: A cause of death and pathways for treating chronic illnesses are complex and multifaceted, prevention is a best practice approach to chronic disease when possible. In many cases, prevention requires mapping complex pathways to determine the ideal point for intervention. Cost-effectiveness of prevention is achievable, but impacted by the length of time it takes to see effects/outcomes of intervention. This makes prevention efforts difficult to fund—particularly in strained financial contexts. Prevention potentially creates other costs as well, due to extending
1230-610: A decline of tobacco use in the state. Lung cancer and tobacco smoking are increasing worldwide, especially in China. China is responsible for about one-third of the global consumption and production of tobacco products. Tobacco control policies have been ineffective as China is home to 350 million regular smokers and 750 million passive smokers and the annual death toll is over 1 million. Recommended actions to reduce tobacco use include decreasing tobacco supply, increasing tobacco taxes, widespread educational campaigns, decreasing advertising from
1353-407: A disease, though, in general, primary prevention addresses the root cause of a disease or injury whereas secondary prevention aims to detect and treat a disease early on. Secondary prevention consists of "early diagnosis and prompt treatment" to contain the disease and prevent its spread to other individuals, and "disability limitation" to prevent potential future complications and disabilities from
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#17328518700741476-554: A given age , from CVD are more common and have been increasing in much of the developing world , while rates have declined in most of the developed world since the 1970s. Coronary artery disease and stroke account for 80% of CVD deaths in males and 75% of CVD deaths in females. Most cardiovascular disease affects older adults. In the United States 11% of people between 20 and 40 have CVD, while 37% between 40 and 60, 71% of people between 60 and 80, and 85% of people over 80 have CVD. The average age of death from coronary artery disease in
1599-891: A greater risk of cardiovascular disease. Policies that have resulted in increased socio-economic inequalities have been associated with greater subsequent socio-economic differences in cardiovascular disease implying a cause and effect relationship. Psychosocial factors, environmental exposures, health behaviours, and health-care access and quality contribute to socio-economic differentials in cardiovascular disease. The Commission on Social Determinants of Health recommended that more equal distributions of power, wealth, education, housing, environmental factors, nutrition, and health care were needed to address inequalities in cardiovascular disease and non-communicable diseases. Particulate matter has been studied for its short- and long-term exposure effects on cardiovascular disease . Currently, airborne particles under 2.5 micrometers in diameter (PM 2.5 ) are
1722-432: A healthy and balanced lifestyle, stay up to date with immunizations and boosters, and maintain a good relationship with a healthcare provider. In pediatrics, some common examples of primary prevention are encouraging parents to turn down the temperature of their home water heater in order to avoid scalding burns, encouraging children to wear bicycle helmets, and suggesting that people use the air quality index (AQI) to check
1845-453: A high incidence of cervical cancer. Colorectal cancer is globally the second most common cancer in women and the third-most common in men, and the fourth most common cause of cancer death after lung , stomach , and liver cancer , having caused 715,000 deaths in 2010. It is also highly preventable; about 80 percent of colorectal cancers begin as benign growths , commonly called polyps , which can be easily detected and removed during
1968-430: A high risk group with CHD reduced overall mortality by 30%. Non-fatal CHD events and fatal and non-fatal cerebrovascular events were reduced without an increase in risk of cancer. Published in The Lancet in 1994, the 4S trial, had an immediate influence on medical opinion, and is considered a "landmark paper". Several other large multicenter clinical trials followed, leading to widespread use of simvastatin. Data from
2091-407: A majority of the cancer burden largely due to exposure to carcinogens resulting from industrialization and globalization. However, primary prevention of cancer and knowledge of cancer risk factors can reduce over one third of all cancer cases. Primary prevention of cancer can also prevent other diseases, both communicable and non-communicable, that share common risk factors with cancer. Lung cancer
2214-497: A male with diabetes. Women who have high blood pressure and had complications in their pregnancy have three times the risk of developing cardiovascular disease compared to women with normal blood pressure who had no complications in pregnancy. Coronary heart diseases are 2 to 5 times more common among middle-aged men than women. In a study done by the World Health Organization , sex contributes to approximately 40% of
2337-400: A myriad of different services, each of which can individually lead to net costs, savings, or neither. Greater differentiation of these services is necessary to fully understand both the financial and health effects. A 2010 study reported that in the United States, vaccinating children, cessation of smoking, daily prophylactic use of aspirin, and screening of breast and colorectal cancers had
2460-959: A range of symptoms. Preventive measures for STIs are called prophylactics. The term especially applies to the use of condoms , which are highly effective at preventing disease, but also to other devices meant to prevent STIs, such as dental dams and latex gloves . Other means for preventing STIs include education on how to use condoms or other such barrier devices , testing partners before having unprotected sex, receiving regular STI screenings, to both receive treatment and prevent spreading STIs to partners, and, specifically for HIV, regularly taking prophylactic antiretroviral drugs, such as Truvada . Post-exposure prophylaxis , started within 72 hours (optimally less than 1 hour) after exposure to high-risk fluids, can also protect against HIV transmission. Genetically modified mosquitoes are being used in developing countries to control malaria . This approach has been subject to objections and controversy. Thrombosis
2583-451: A reduction in cardiovascular events. A 2015 meta-analysis of observational studies however did not find a convincing association between saturated fat intake and cardiovascular disease. Variation in what is used as a substitute for saturated fat may explain some differences in findings. The benefit from replacement with polyunsaturated fats appears greatest, while replacement of saturated fats with carbohydrates does not appear to have
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#17328518700742706-503: A result of social and environmental factors. Black children and children living in disadvantaged neighborhoods have much higher rates of sleep apnea. Cardiovascular disease has a greater impact on low- and middle-income countries compared to those with higher income. Although data on the social patterns of cardiovascular disease in low- and middle-income countries is limited, reports from high-income countries consistently demonstrate that low educational status or income are associated with
2829-432: A risk of death as never smokers. Insufficient physical activity (defined as less than 5 x 30 minutes of moderate activity per week, or less than 3 x 20 minutes of vigorous activity per week) is currently the fourth leading risk factor for mortality worldwide. In 2008, 31.3% of adults aged 15 or older (28.2% men and 34.4% women) were insufficiently physically active. The risk of ischemic heart disease and diabetes mellitus
2952-795: A separate category of health promotion based on the evidence that epigenetic processes start at conception (see below: Primal and primordial preventions). Primordial prevention refers to measures designed to avoid the development of risk factors in the first place, early in life. Primal prevention is health promotion par excellence . New knowledge in molecular biology, in particular epigenetics , points to how much affective as well as physical environment during fetal and newborn life may determine adult health. This way of promoting health consists mainly in providing future parents with pertinent, unbiased information on primal health and supporting them during their child's primal period of life (i.e., "from conception to first anniversary" according to definition by
3075-437: A small amount compared to usual care. However, there was some uncertainty as to whether providing these scores had any effect on cardiovascular disease events. It is unclear whether or not dental care in those with periodontitis affects their risk of cardiovascular disease. According to a 2021 WHO study, working 55+ hours a week raises the risk of stroke by 35% and the risk of dying from heart conditions by 17%, when compared to
3198-461: A small effect. Age is the most important risk factor in developing cardiovascular or heart diseases, with approximately a tripling of risk with each decade of life. Coronary fatty streaks can begin to form in adolescence. It is estimated that 82 percent of people who die of coronary heart disease are 65 and older. Simultaneously, the risk of stroke doubles every decade after age 55. Multiple explanations are proposed to explain why age increases
3321-702: A vegan diet is associated with a more favourable cardio-metabolic profile compared to an omnivorous diet." Evidence suggests that the Mediterranean diet may improve cardiovascular outcomes. There is also evidence that a Mediterranean diet may be more effective than a low-fat diet in bringing about long-term changes to cardiovascular risk factors (e.g., lower cholesterol level and blood pressure ). The DASH diet (high in nuts, fish, fruits and vegetables, and low in sweets, red meat and fat) has been shown to reduce blood pressure, lower total and low density lipoprotein cholesterol and improve metabolic syndrome ; but
3444-574: A week. Preventive health care offers many benefits to those that chose to participate in taking an active role in the culture. The medical system in our society is geared toward curing acute symptoms of disease after the fact that they have brought us into the emergency room. An ongoing epidemic within American culture is the prevalence of obesity. Healthy eating and regular exercise play a significant role in reducing an individual's risk for type 2 diabetes. A 2008 study concluded that about 23.6 million people in
3567-534: A year on health care but have a higher rate of infant mortality , shorter life expectancies , and a higher rate of diabetes than other high-income nations because of negative lifestyle choices. Despite these large costs, very little is spent on prevention for lifestyle-caused conditions in comparison. In 2016, the Journal of the American Medical Association estimated that $ 101 billion was spent in 2013 on
3690-465: Is 36 years greater than that in Malawi. Low-income countries also tend to have fewer physicians than high-income countries. In Nigeria and Myanmar, there are fewer than 4 physicians per 100,000 people while Norway and Switzerland have a ratio that is ten-fold higher. Common barriers worldwide include lack of availability of health services and healthcare providers in the region, great physical distance between
3813-420: Is a problem facing 1 out of 3 Americans. If better food options were available through food banks , soup kitchens, and other resources for low-income people, obesity and the chronic conditions that come along with it would be better controlled. A food desert is an area with restricted access to healthy foods due to a lack of supermarkets within a reasonable distance. These are often low-income neighborhoods with
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3936-426: Is a serious circulatory disease affecting thousands, usually older persons undergoing surgical procedures, women taking oral contraceptives and travelers. The consequences of thrombosis can be heart attacks and strokes. Prevention can include exercise, anti-embolism stockings, pneumatic devices, and pharmacological treatments. In recent years , cancer has become a global problem. Low and middle income countries share
4059-409: Is also beneficial. Treating people who have strep throat with antibiotics can decrease the risk of rheumatic heart disease. The use of aspirin in people who are otherwise healthy is of unclear benefit. Cardiovascular diseases are the leading cause of death worldwide except Africa. Together CVD resulted in 17.9 million deaths (32.1%) in 2015, up from 12.3 million (25.8%) in 1990. Deaths, at
4182-1214: Is also linked to carotid artery thickening and increased risk of acute myocardial infarction. Existing cardiovascular disease or a previous cardiovascular event, such as a heart attack or stroke, is the strongest predictor of a future cardiovascular event. Age, sex, smoking, blood pressure, blood lipids and diabetes are important predictors of future cardiovascular disease in people who are not known to have cardiovascular disease. These measures, and sometimes others, may be combined into composite risk scores to estimate an individual's future risk of cardiovascular disease. Numerous risk scores exist although their respective merits are debated. Other diagnostic tests and biomarkers remain under evaluation but currently these lack clear-cut evidence to support their routine use. They include family history, coronary artery calcification score, high sensitivity C-reactive protein (hs-CRP), ankle–brachial pressure index , lipoprotein subclasses and particle concentration, lipoprotein(a), apolipoproteins A-I and B, fibrinogen , white blood cell count, homocysteine , N-terminal pro B-type natriuretic peptide (NT-proBNP), and markers of kidney function. High blood phosphorus
4305-494: Is also linked to an increased risk. There is evidence that mental health problems, in particular depression and traumatic stress, is linked to cardiovascular diseases. Whereas mental health problems are known to be associated with risk factors for cardiovascular diseases such as smoking, poor diet, and a sedentary lifestyle, these factors alone do not explain the increased risk of cardiovascular diseases seen in depression, stress, and anxiety. Moreover, posttraumatic stress disorder
4428-458: Is also monitored in many cases for securing health. There also is some monitoring of air pollution . In many cases, environmental standards such as via maximum pollution levels, regulation of chemicals , occupational hygiene requirements or consumer protection regulations establish some protection in combination with the monitoring. Preventive measures like vaccines and medical screenings are also important. Using PPE properly and getting
4551-571: Is an increase from the year 2000, during which 60% of deaths were attributed to these diseases. ) Preventive healthcare is especially important given the worldwide rise in the prevalence of chronic diseases and deaths from these diseases. There are many methods for prevention of disease. One of them is prevention of teenage smoking through information giving. It is recommended that adults and children aim to visit their doctor for regular check-ups, even if they feel healthy, to perform disease screening , identify risk factors for disease, discuss tips for
4674-422: Is associated with heart disease. Associations also exist for exposure to arsenic , benzopyrenes , lead , dynamite , carbon disulphide , carbon monoxide , metalworking fluids and occupational exposure to tobacco smoke . Working with the electrolytic production of aluminium or the production of paper when the sulphate pulping process is used is associated with heart disease. An association
4797-514: Is being electrolytically produced, is associated with stroke . As of 2017, evidence suggests that certain leukemia -associated mutations in blood cells may also lead to increased risk of cardiovascular disease. Several large-scale research projects looking at human genetic data have found a robust link between the presence of these mutations, a condition known as clonal hematopoiesis , and cardiovascular disease-related incidents and mortality. Radiation treatments (RT) for cancer can increase
4920-411: Is complex, and may depend on the amount of alcohol consumed. There is a direct relationship between high levels of drinking alcohol and cardiovascular disease. Drinking at low levels without episodes of heavy drinking may be associated with a reduced risk of cardiovascular disease, but there is evidence that associations between moderate alcohol consumption and protection from stroke are non-causal. At
5043-452: Is conflicting evidence concerning whether dietary supplements of omega-3 fatty acids (a type of polyunsaturated essential fatty acid) added to diet improve cardiovascular risk. The benefits of recommending a low-salt diet in people with high or normal blood pressure are not clear. In those with heart failure, after one study was left out, the rest of the trials show a trend to benefit. Another review of dietary salt concluded that there
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5166-435: Is disputed. The World Health Organization attributes approximately 1.7 million deaths worldwide to low fruit and vegetable consumption. Frequent consumption of high-energy foods, such as processed foods that are high in fats and sugars, promotes obesity and may increase cardiovascular risk. The amount of dietary salt consumed may also be an important determinant of blood pressure levels and overall cardiovascular risk. There
5289-543: Is documented as increasing cardiovascular risk in both adults and teens. Recommendations suggest that infants typically need 12 or more hours of sleep per day, adolescents at least eight or nine hours, and adults seven or eight. About one-third of adult Americans get less than the recommended seven hours of sleep per night, and in a study of teenagers, just 2.2 percent of those studied got enough sleep, many of whom did not get good quality sleep. Studies have shown that short sleepers getting less than seven hours sleep per night have
5412-488: Is estimated to account for approximately 13% of CVD deaths, while tobacco accounts for 9%, diabetes 6%, lack of exercise 6%, and obesity 5%. Rheumatic heart disease may follow untreated strep throat . It is estimated that up to 90% of CVD may be preventable. Prevention of CVD involves improving risk factors through: healthy eating , exercise, avoidance of tobacco smoke and limiting alcohol intake. Treating risk factors, such as high blood pressure, blood lipids and diabetes
5535-412: Is evidence that higher consumption of sugar is associated with higher blood pressure and unfavorable blood lipids, and sugar intake also increases the risk of diabetes mellitus. High consumption of processed meats is associated with an increased risk of cardiovascular disease, possibly in part due to increased dietary salt intake. The relationship between alcohol consumption and cardiovascular disease
5658-597: Is inconclusive. Additionally echocardiography , myocardial perfusion imaging , and cardiac stress testing is not recommended in those at low risk who do not have symptoms. Some biomarkers may add to conventional cardiovascular risk factors in predicting the risk of future cardiovascular disease; however, the value of some biomarkers is questionable. Ankle-brachial index (ABI), high-sensitivity C-reactive protein (hsCRP), and coronary artery calcium , are also of unclear benefit in those without symptoms as of 2018. The NIH recommends lipid testing in children beginning at
5781-490: Is independently associated with increased risk for incident coronary heart disease, even after adjusting for depression and other covariates. Little is known about the relationship between work and cardiovascular disease, but links have been established between certain toxins, extreme heat and cold, exposure to tobacco smoke, and mental health concerns such as stress and depression. A 2015 SBU-report looking at non-chemical factors found an association for those: Specifically
5904-498: Is moderate quality evidence that reducing saturated fat intake for at least two years reduces the risk of cardiovascular disease. High trans-fat intake has adverse effects on blood lipids and circulating inflammatory markers, and elimination of trans-fat from diets has been widely advocated. In 2018 the World Health Organization estimated that trans fats were the cause of more than half a million deaths per year. There
6027-822: Is paramount to prevention of lung cancer. Individual, community, and statewide interventions can prevent or cease tobacco use. 90% of adults in the U.S. who have ever smoked did so prior to the age of 20. In-school prevention/educational programs, as well as counseling resources, can help prevent and cease adolescent smoking. Other cessation techniques include group support programs, nicotine replacement therapy (NRT), hypnosis, and self-motivated behavioral change. Studies have shown long term success rates (>1 year) of 20% for hypnosis and 10%-20% for group therapy. Cancer screening programs serve as effective sources of secondary prevention. The Mayo Clinic, Johns Hopkins, and Memorial Sloan-Kettering hospitals conducted annual x-ray screenings and sputum cytology tests and found that lung cancer
6150-508: Is recommended that individuals adhere to a consistent exercise regimen as well as a nutritious and balanced diet. A healthy individual should aim for acquiring 10% of their energy from proteins, 15-20% from fat, and over 50% from complex carbohydrates, while avoiding alcohol as well as foods high in fat, salt, and sugar. Sedentary adults should aim for at least half an hour of moderate-level daily physical activity and eventually increase to include at least 20 minutes of intense exercise, three times
6273-543: Is reduced by almost a third in adults who participate in 150 minutes of moderate physical activity each week (or equivalent). In addition, physical activity assists weight loss and improves blood glucose control, blood pressure, lipid profile and insulin sensitivity. These effects may, at least in part, explain its cardiovascular benefits. High dietary intakes of saturated fat, trans-fats and salt, and low intake of fruits, vegetables and fish are linked to cardiovascular risk, although whether all these associations indicate causes
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#17328518700746396-452: Is some evidence that interventions aiming to reduce more than one cardiovascular risk factor may have beneficial effects on blood pressure, body mass index and waist circumference; however, evidence was limited and the authors were unable to draw firm conclusions on the effects on cardiovascular events and mortality. There is additional evidence to suggest that providing people with a cardiovascular disease risk score may reduce risk factors by
6519-467: Is strong evidence that high dietary salt intake increases blood pressure and worsens hypertension, and that it increases the number of cardiovascular disease events; both as a result of the increased blood pressure and probably through other mechanisms. Moderate evidence was found that high salt intake increases cardiovascular mortality; and some evidence was found for an increase in overall mortality, strokes, and left ventricular hypertrophy . Overall,
6642-448: Is suggested for these patients in order to halt progression and complications of disease. A study conducted in nursing homes to prevent diseases concluded that the use of evaporative humidifiers to maintain the indoor humidity within the range 40–60% can reduce respiratory risk. Certain diseases thrive in different humidities, so the use of the humidifiers can help kill the particles of diseases. The leading preventable cause of death in
6765-523: Is the leading cause of cancer-related deaths in the United States and Europe and is a major cause of death in other countries. Tobacco is an environmental carcinogen and the major underlying cause of lung cancer. Between 25% and 40% of all cancer deaths and about 90% of lung cancer cases are associated with tobacco use. Other carcinogens include asbestos and radioactive materials. Both smoking and second-hand exposure from other smokers can lead to lung cancer and eventually death. Prevention of tobacco use
6888-471: Is the most basic tool in preventive health care. Poor nutrition is linked to various chronic illnesses. Because of this, having a healthy diet and proper nutrition can be used to prevent illnesses. The 2011 National Health Interview Survey performed by the Centers for Disease Control was the first national survey to include questions about ability to pay for food. Difficulty with paying for food, medicine, or both
7011-407: Is the most life-threatening of the diabetic complications and diabetics are two- to four-fold more likely to die of cardiovascular-related causes than nondiabetics. Screening ECGs (either at rest or with exercise) are not recommended in those without symptoms who are at low risk. This includes those who are young without risk factors. In those at higher risk the evidence for screening with ECGs
7134-670: Is very preventable, the CDC recommends school-level prevention programs including preventive curricula, family involvement, participation and support from the school's health services, and partnership with community, state, and national agencies and organizations to keep children away from excessive UV radiation exposure. Most skin cancer and sun protection data comes from Australia and the United States. An international study reported that Australians tended to demonstrate higher knowledge of sun protection and skin cancer knowledge, compared to other countries. Of children, adolescents, and adults, sunscreen
7257-640: The coronary arteries . Cardiovascular disease in a person's parents increases their risk by ~3 fold, and genetics is an important risk factor for cardiovascular diseases. Genetic cardiovascular disease can occur either as a consequence of single variant (Mendelian) or polygenic influences. There are more than 40 inherited cardiovascular disease that can be traced to a single disease-causing DNA variant, although these conditions are rare. Most common cardiovascular diseases are non-Mendelian and are thought to be due to hundreds or thousands of genetic variants (known as single nucleotide polymorphisms), each associated with
7380-492: The lifespan and thereby increasing opportunities for illness. In order to assess the cost-effectiveness of prevention, the cost of the preventive measure, savings from avoiding morbidity, and the cost from extending the lifespan need to be considered. Life extension costs become smaller when accounting for savings from postponing the last year of life, which makes up a large fraction of lifetime medical expenditures and becomes cheaper with age. Prevention leads to savings only if
7503-472: The quality of life dramatically. There are varying views on what constitutes a "good investment." Some argue that preventive health measures should save more money than they cost, when factoring in treatment costs in the absence of such measures. Others have argued in favor of "good value" or conferring significant health benefits even if the measures do not save money. Furthermore, preventive health services are often described as one entity though they comprise
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#17328518700747626-421: The quality of life , and create a sense of overall well-being . Preventing disease and creating overall well-being prolongs life expectancy . Health-promotional activities do not target a specific disease or condition but rather promote health and well-being on a very general level. On the other hand, specific protection targets a type or group of diseases and complements the goals of health promotion. Food
7749-515: The 1970s. However, these efforts have not resulted in a significant change in cervical cancer incidence or mortality in these nations. This is likely due to low quality, inefficient testing. However, Puerto Rico, which has offered early screening since the 1960s, has witnessed almost a 50% decline in cervical cancer incidence and almost a four-fold decrease in mortality between 1950 and 1990. Brazil, Peru, India, and several high-risk nations in sub-Saharan Africa which lack organized screening programs, have
7872-714: The 4S trial has frequently been used to analyse the cost-effectiveness of simvastatin in secondary prevention. Secondary prevention Preventive healthcare , or prophylaxis , is the application of healthcare measures to prevent diseases . Disease and disability are affected by environmental factors , genetic predisposition , disease agents, and lifestyle choices , and are dynamic processes that begin before individuals realize they are affected. Disease prevention relies on anticipatory actions that can be categorized as primal, primary, secondary, and tertiary prevention. Each year, millions of people die of preventable causes. A 2004 study showed that about half of all deaths in
7995-759: The Agency for Healthcare Research and Quality (AHRQ) revealed health disparities in the United States. In the United States, elderly adults (>65 years old) received worse care and had less access to care than their younger counterparts. The same trends are seen when comparing all racial minorities (black, Hispanic, Asian) to white patients, and low-income people to high-income people. Common barriers to accessing and utilizing healthcare resources included lack of income and education, language barriers, and lack of health insurance. Minorities were less likely than whites to possess health insurance, as were individuals who completed less education. These disparities made it more difficult for
8118-497: The Congo, Pakistan, and China contributed to almost 50% of global child deaths. Targeting efforts in these countries is essential to reducing the global child death rate. Child mortality is caused by factors including poverty, environmental hazards, and lack of maternal education. In 2003, the World Health Organization created a list of interventions in the following table that were judged economically and operationally "feasible," based on
8241-486: The Primal Health Research Centre, London). This includes adequate parental leave, ideally for both parents, with kin caregiving and financial help where needed. Primordial prevention refers to all measures designed to prevent the development of risk factors in the first place, early in life, and even preconception, as Ruth A. Etzel has described it "all population-level actions and measures that inhibit
8364-499: The U.S. The repeal of the Affordable Care Act (ACA) could significantly impact coverage for many Americans as well as "The Prevention and Public Health Fund" which is the U.S. first and only mandatory funding stream dedicated to improving public health including counseling on lifestyle prevention issues, such as weight management, alcohol use, and treatment for depression . Because in the U.S. chronic illnesses predominate as
8487-418: The United States had diabetes, including 5.7 million that had not been diagnosed. 90 to 95 percent of people with diabetes have type 2 diabetes . Diabetes is the main cause of kidney failure, limb amputation, and new-onset blindness in American adults. Sexually transmitted infections (STIs), such as syphilis and HIV , are common but preventable with safe-sex practices. STIs can be asymptomatic, or cause
8610-623: The United States in 2000 were due to preventable behaviors and exposures. Leading causes included cardiovascular disease , chronic respiratory disease , unintentional injuries, diabetes , and certain infectious diseases . This same study estimates that 400,000 people die each year in the United States due to poor diet and a sedentary lifestyle . According to estimates made by the World Health Organization (WHO), about 55 million people died worldwide in 2011, and two-thirds of these died from non-communicable diseases, including cancer , diabetes , and chronic cardiovascular and lung diseases . This
8733-539: The United States is tobacco; however, poor diet and lack of exercise may soon surpass tobacco as a leading cause of death. These behaviors are modifiable and public health and prevention efforts could make a difference to reduce these deaths. The leading causes of preventable death worldwide share similar trends to the United States . There are a few differences between the two, such as malnutrition, pollution, and unsafe sanitation, that reflect health disparities between
8856-420: The age of 2 if there is a family history of heart disease or lipid problems. It is hoped that early testing will improve lifestyle factors in those at risk such as diet and exercise. Screening and selection for primary prevention interventions has traditionally been done through absolute risk using a variety of scores (ex. Framingham or Reynolds risk scores). This stratification has separated people who receive
8979-424: The average age being 59. Of the 4,444 people enrolled in the study, 3,617 were men and 827 women, 2,223 were randomly assigned a placebo and 2,221 were given 20 to 40 mg of simvastatin daily. The plan was to follow the participants for a minimum of three years or until such a time as total mortality reached 440 deaths. In practice, the study carried for a median period of 5.4 years. After 5.4 years, compared to
9102-467: The cost of the preventive measure is less than the savings from avoiding morbidity net of the cost of extending the life span. In order to establish reliable economics of prevention for illnesses that are complicated in origin, knowing how best to assess prevention efforts, i.e. developing useful measures and appropriate scope, is required. There is no general consensus as to whether or not preventive healthcare measures are cost-effective, but they increase
9225-421: The damage caused by symptomatic disease by focusing on mental, physical, and social rehabilitation. Unlike secondary prevention, which aims to prevent disability, the objective of tertiary prevention is to maximize the remaining capabilities and functions of an already disabled patient. Goals of tertiary prevention include: preventing pain and damage, halting progression and complications from disease, and restoring
9348-859: The developed world is around 80, while it is around 68 in the developing world. CVD is typically diagnosed seven to ten years earlier in men than in women. There are many cardiovascular diseases involving the blood vessels. They are known as vascular diseases . There are also many cardiovascular diseases that involve the heart. There are many risk factors for heart diseases: age, sex, tobacco use, physical inactivity, non-alcoholic fatty liver disease , excessive alcohol consumption, unhealthy diet, obesity, genetic predisposition and family history of cardiovascular disease, raised blood pressure ( hypertension ), raised blood sugar ( diabetes mellitus ), raised blood cholesterol ( hyperlipidemia ), undiagnosed celiac disease , psychosocial factors, poverty and low educational status, air pollution , and poor sleep . While
9471-453: The developing and developed world. However, several of the leading causes of death – or underlying contributors to earlier death – may not be included as "preventable" causes of death. A study concluded that pollution was "responsible for approximately 9 million deaths per year" in 2019. And another study concluded that the global mean loss of life expectancy (a measure similar to years of potential life lost ) from air pollution in 2015
9594-616: The development of healthy habits that continue to prevent cancer for a lifetime. The Centers for Disease Control and Prevention (CDC) recommends several primary prevention methods including: limiting sun exposure between 10 AM and 4 PM, when the sun is strongest, wearing tighter-weave natural cotton clothing, wide-brim hats, and sunglasses as protective covers, using sunscreens that protect against both UV-A and UV-B rays, and avoiding tanning salons. Sunscreen should be reapplied after sweating, exposure to water (through swimming for example) or after several hours of sun exposure. Since skin cancer
9717-577: The disadvantaged groups to have regular access to a primary care provider, receive immunizations, or receive other types of medical care. Additionally, uninsured people tend to not seek care until their diseases progress to chronic and serious states and they are also more likely to forgo necessary tests, treatments, and filling prescription medications. These sorts of disparities and barriers exist worldwide as well. Often, there are decades of gaps in life expectancy between developing and developed countries. For example, Japan has an average life expectancy that
9840-467: The disease. Early diagnosis and prompt treatment for a syphilis patient would include a course of antibiotics to destroy the pathogen and screening and treatment of any infants born to syphilitic mothers. Disability limitation for syphilitic patients includes continued check-ups on the heart, cerebrospinal fluid, and central nervous system of patients to curb any damaging effects such as blindness or paralysis. Finally, tertiary prevention attempts to reduce
9963-426: The disease. It is estimated that dietary risk factors are associated with 53% of CVD deaths. Coronary artery disease, stroke, and peripheral artery disease involve atherosclerosis . This may be caused by high blood pressure , smoking , diabetes mellitus , lack of exercise , obesity , high blood cholesterol , poor diet, excessive alcohol consumption, and poor sleep , among other things. High blood pressure
10086-596: The emergence and establishment of adverse environmental, economic, and social conditions". This could be reducing air pollution or prohibiting endocrine-disrupting chemicals in food-handling equipment and food contact materials. Primary prevention consists of traditional health promotion and "specific protection". Health promotion activities include prevention strategies such as health education and lifestyle medicine , and are current, non-clinical life choices such as eating nutritious meals and exercising often, that prevent lifestyle-related medical conditions , improve
10209-479: The female lipid metabolism toward a more atherogenic form by decreasing the HDL cholesterol level while increasing LDL and total cholesterol levels. Among men and women, there are differences in body weight, height, body fat distribution, heart rate, stroke volume, and arterial compliance. In the very elderly, age-related large artery pulsatility and stiffness are more pronounced among women than men. This may be caused by
10332-570: The fourth Millennium Development Goal to decrease child mortality by two-thirds by 2015. Of these deaths, about 64% were due to infection including diarrhea , pneumonia , and malaria . About 40% of these deaths occurred in neonates (children ages 1–28 days) due to pre-term birth complications. The highest number of child deaths occurred in Africa and Southeast Asia. As of 2015 in Africa, almost no progress has been made in reducing neonatal death since 1990. In 2010, India, Nigeria, Democratic Republic of
10455-698: The group that were given placebo, the simvastatin group demonstrated a 35% reduction in LDL-C and 30% reduction in overall mortality. The risk of hospital-verified non-fatal myocardial infarction reduced by 37% and fatal and non-fatal cerebrovascular events ( stroke and TIA ) lessened by 28%. 30 people would need to be treated with simvastatin for about five years, to prevent one death; number needed to treat around 30. There were no extra deaths from other non-cardiac causes such as cancer or trauma. The trial also showed benefits in diabetes, women and older people. A follow-up of treatment with simvastatin for up to eight years
10578-409: The health and functions of the individuals affected by disease. For syphilitic patients, rehabilitation includes measures to prevent complete disability from the disease, such as implementing work-place adjustments for the blind and paralyzed or providing counseling to restore normal daily functions to the greatest extent possible. The general use of machinery that has adequate ventilation and airflow
10701-432: The healthcare resources and infrastructure in 42 nations that contribute to 90% of all infant and child deaths. The table indicates how many infant and child deaths could have been prevented in 2000, assuming universal healthcare coverage. Obesity is a major risk factor for a wide variety of conditions including cardiovascular diseases, hypertension , certain cancers, and type 2 diabetes . In order to prevent obesity, it
10824-472: The home and health service facilities, high transportation costs, high treatment costs, and social norms and stigma toward accessing certain health services. With lifestyle factors such as diet and exercise rising to the top of preventable death statistics, the economics of healthy lifestyle is a growing concern. There is little question that positive lifestyle choices provide an investment in health throughout life. To gauge success, traditional measures such as
10947-528: The individual contribution of each risk factor varies between different communities or ethnic groups the overall contribution of these risk factors is very consistent. Some of these risk factors, such as age, sex or family history/genetic predisposition, are immutable; however, many important cardiovascular risk factors are modifiable by lifestyle change, social change, drug treatment (for example prevention of hypertension, hyperlipidemia, and diabetes). People with obesity are at increased risk of atherosclerosis of
11070-464: The intermediate and low risk groups. As a result, future preventative screening appears to shift toward applying prevention according to randomized trial results of each intervention rather than large-scale risk assessment. Up to 90% of cardiovascular disease may be preventable if established risk factors are avoided. Currently practised measures to prevent cardiovascular disease include: Most guidelines recommend combining preventive strategies. There
11193-645: The interventions that bring about the highest level of health should be prioritized. Cardiovascular disease Cardiovascular disease ( CVD ) is any disease involving the heart or blood vessels . CVDs constitute a class of diseases that includes: coronary artery diseases (e.g. angina , heart attack ), heart failure , hypertensive heart disease , rheumatic heart disease , cardiomyopathy , arrhythmia , congenital heart disease , valvular heart disease , carditis , aortic aneurysms , peripheral artery disease , thromboembolic disease , and venous thrombosis . The underlying mechanisms vary depending on
11316-493: The knowledge of hereditary diseases and have facilitated progress in specific protective measures in individuals who are carriers of a disease gene or have an increased predisposition to a specific disease. Genetic testing has allowed physicians to make quicker and more accurate diagnoses and has allowed for tailored treatments or personalized medicine . Food safety has a significant impact on human health and food quality monitoring has increased. Water, including drinking water,
11439-415: The largest attributable burden of disease, i.e. an estimated 745,000 fatalities from ischemic heart disease and stroke events in 2016. With this study, prevention of exposure to long working hours has emerged as a priority for prevention healthcare in workplace settings. In 2010, 7.6 million children died before reaching the age of 5. While this is a decrease from 9.6 million in 2000, it was still far from
11562-530: The level of pollution in the outside air before engaging in sporting activities. Some common disease screenings include checking for hypertension (high blood pressure), hyperglycemia (high blood sugar, a risk factor for diabetes mellitus ), hypercholesterolemia (high blood cholesterol), screening for colon cancer , depression , HIV and other common types of sexually transmitted disease such as chlamydia , syphilis , and gonorrhea , mammography (to screen for breast cancer ), colorectal cancer screening,
11685-425: The lifestyle interventions (generally lower and intermediate risk) from the medication (higher risk). The number and variety of risk scores available for use has multiplied, but their efficacy according to a 2016 review was unclear due to lack of external validation or impact analysis. Risk stratification models often lack sensitivity for population groups and do not account for the large number of negative events among
11808-422: The long run. The money saved by evading treatment from heart attack and stroke only amounted to about a quarter of the cost of the drugs. Similarly, it was found that the cost of drugs or dietary changes to decrease high blood cholesterol exceeded the cost of subsequent heart disease treatment. Due to these findings, some argue that rather than focusing healthcare reform efforts exclusively on preventive care,
11931-616: The long-term benefits have been questioned. A high- fiber diet is associated with lower risks of cardiovascular disease. Worldwide, dietary guidelines recommend a reduction in saturated fat , and although the role of dietary fat in cardiovascular disease is complex and controversial there is a long-standing consensus that replacing saturated fat with unsaturated fat in the diet is sound medical advice. Total fat intake has not been found to be associated with cardiovascular risk. A 2020 systematic review found moderate quality evidence that reducing saturated fat intake for at least 2 years caused
12054-458: The loss of arterial elasticity and reduced arterial compliance and may subsequently lead to coronary artery disease. Men are at greater risk of heart disease than pre-menopausal women. Once past menopause , it has been argued that a woman's risk is similar to a man's although more recent data from the WHO and UN disputes this. If a female has diabetes, she is more likely to develop heart disease than
12177-600: The major focus, in which gradients are used to determine CVD risk. Overall, long-term PM exposure increased rate of atherosclerosis and inflammation. In regards to short-term exposure (2 hours), every 25 μg/m of PM 2.5 resulted in a 48% increase of CVD mortality risk. In addition, after only 5 days of exposure, a rise in systolic (2.8 mmHg) and diastolic (2.7 mmHg) blood pressure occurred for every 10.5 μg/m of PM 2.5 . Other research has implicated PM 2.5 in irregular heart rhythm, reduced heart rate variability (decreased vagal tone), and most notably heart failure. PM 2.5
12300-506: The major precursor of cardiovascular disease, begins in childhood. The Pathobiological Determinants of Atherosclerosis in Youth (PDAY) study demonstrated that intimal lesions appear in all the aortas and more than half of the right coronary arteries of youths aged 7–9 years. Obesity and diabetes mellitus are linked to cardiovascular disease, as are a history of chronic kidney disease and hypercholesterolaemia . In fact, cardiovascular disease
12423-499: The majority of residents lacking transportation. There have been several grassroots movements since 1995 to encourage urban gardening , using vacant lots to grow food cultivated by local residents. Mobile fresh markets are another resource for residents in a "food desert", which are specially outfitted buses bringing affordable fresh fruits and vegetables to low-income neighborhoods. It has been proposed that healthy longevity diets are included in standard healthcare as switching from
12546-447: The most potential to prevent premature death. Preventive health measures that resulted in savings included vaccinating children and adults, smoking cessation, daily use of aspirin, and screening for issues with alcoholism, obesity, and vision failure. These authors estimated that if usage of these services in the United States increased to 90% of the population, there would be net savings of $ 3.7 billion, which comprised only about -0.2% of
12669-418: The population level, the health risks of drinking alcohol exceed any potential benefits. Untreated celiac disease can cause the development of many types of cardiovascular diseases, most of which improve or resolve with a gluten-free diet and intestinal healing. However, delays in recognition and diagnosis of celiac disease can cause irreversible heart damage. A lack of good sleep, in amount or quality,
12792-472: The potential to reduce tobacco use. Skin cancer is the most common cancer in the United States. The most lethal form of skin cancer, melanoma, leads to over 50,000 annual deaths in the United States. Childhood prevention is particularly important because a significant portion of ultraviolet radiation exposure from the sun occurs during childhood and adolescence and can subsequently lead to skin cancer in adulthood. Furthermore, childhood prevention can lead to
12915-418: The preventable disease of diabetes , and another $ 88 billion was spent on heart disease . In an effort to encourage healthy lifestyle choices, as of 2010 workplace wellness programs were on the rise but the economics and effectiveness data were continuing to evolve and develop. Health insurance coverage impacts lifestyle choices, even intermittent loss of coverage had negative effects on healthy choices in
13038-592: The primal, primary, secondary, and tertiary prevention levels. Although advocated as preventive medicine in the early twentieth century by Sara Josephine Baker , in the 1940s, Hugh R. Leavell and E. Gurney Clark coined the term primary prevention. They worked at the Harvard and Columbia University Schools of Public Health, respectively, and later expanded the levels to include secondary and tertiary prevention. Goldston (1987) notes that these levels might be better described as "prevention, treatment, and rehabilitation", although
13161-448: The quality years of life method (QALY) , show great value. However, that method does not account for the cost of chronic conditions or future lost earnings because of poor health. Developing future economic models that would guide both private and public investments as well as drive future policy to evaluate the efficacy of positive lifestyle choices on health is a major topic for economists globally. Americans spend over three trillion
13284-408: The recommended vaccines and screenings can help decrease the spread of respiratory diseases, protecting the healthcare workers as well as their patients. Secondary prevention deals with latent diseases and attempts to prevent an asymptomatic disease from progressing to symptomatic disease. Certain diseases can be classified as primary or secondary. This depends on definitions of what constitutes
13407-443: The risk of stroke was also increased by exposure to ionizing radiation. Hypertension develops more often in those who experience job strain and who have shift-work. Differences between women and men in risk are small, however men risk having and dying of heart attacks or stroke twice as often as women during working life. A 2017 SBU report found evidence that workplace exposure to silica dust , engine exhaust or welding fumes
13530-423: The risk of cardiovascular/heart diseases. One of them relates to serum cholesterol level. In most populations, the serum total cholesterol level increases as age increases. In men, this increase levels off around age 45 to 50 years. In women, the increase continues sharply until age 60 to 65 years. Aging is also associated with changes in the mechanical and structural properties of the vascular wall, which leads to
13653-955: The risk of heart disease and death, as observed in breast cancer therapy. Therapeutic radiation increases the risk of a subsequent heart attack or stroke by 1.5 to 4 times; the increase depends on the dose strength, volume, and location. Use of concomitant chemotherapy, e.g. anthracyclines, is an aggravating risk factor. The occurrence rate of RT induced cardiovascular disease is estimated between 10% and 30%. Side-effects from radiation therapy for cardiovascular diseases have been termed radiation-induced heart disease or radiation-induced cardiovascular disease . Symptoms are dose-dependent and include cardiomyopathy , myocardial fibrosis , valvular heart disease , coronary artery disease , heart arrhythmia and peripheral artery disease . Radiation-induced fibrosis, vascular cell damage and oxidative stress can lead to these and other late side-effect symptoms. Population-based studies show that atherosclerosis,
13776-740: The study was to assess the effect of a cholesterol-lowering drug called simvastatin on mortality and morbidity in people with a history of a previous heart attack or angina , who also had a moderately raised cholesterol ; between 5.5 and 8.0 mmol/L. A second objective was to investigate whether the incidence of major coronary artery disease events (fatal and nonfatal myocardial infarction and sudden death) could be reduced with simvastatin. The participants, all at high risk of death from CHD and death in general, were selected from 94 clinical centers in Denmark, Finland, Iceland, Norway, and Sweden from 1988 to 1989, and were aged between 35 and 70 years, with
13899-495: The terms primary, secondary, and tertiary prevention are still in use today. The concept of primal prevention has been created much more recently, in relation to the new developments in molecular biology over the last fifty years, more particularly in epigenetics, which point to the paramount importance of environmental conditions, both physical and affective, on the organism during its fetal and newborn life, or so-called primal period of life. Primal prevention has been propounded as
14022-426: The tobacco industry, and increasing tobacco cessation support resources. In Wuhan, China, a 1998 school-based program implemented an anti-tobacco curriculum for adolescents and reduced the number of regular smokers, though it did not significantly decrease the number of adolescents who initiated smoking. This program was therefore effective in secondary but not primary prevention and shows that school-based programs have
14145-495: The top three most common cancers among women in Latin America , sub-Saharan Africa , and parts of Asia . Cervical cytology screening aims to detect abnormal lesions in the cervix so that women can undergo treatment prior to the development of cancer. Given that high quality screening and follow-up care has been shown to reduce cervical cancer rates by up to 80%, most developed countries now encourage sexually active women to undergo
14268-691: The total 2006 United States healthcare expenditure. Despite the potential for decreasing healthcare spending, utilization of healthcare resources in the United States still remains low, especially among Latinos and African-Americans. Overall, preventive services are difficult to implement because healthcare providers have limited time with patients and must integrate a variety of preventive health measures from different sources. While these specific services bring about small net savings, not every preventive health measure saves more than it costs. A 1970s study showed that preventing heart attacks by treating hypertension early on with drugs actually did not save money in
14391-592: The variation in sex ratios of coronary heart disease mortality. Another study reports similar results finding that sex differences explains nearly half the risk associated with cardiovascular diseases One of the proposed explanations for sex differences in cardiovascular diseases is hormonal difference. Among women, estrogen is the predominant sex hormone. Estrogen may have protective effects on glucose metabolism and hemostatic system, and may have direct effect in improving endothelial cell function. The production of estrogen decreases after menopause, and this may change
14514-406: The women's smaller body size and arterial dimensions which are independent of menopause. Cigarettes are the major form of smoked tobacco. Risks to health from tobacco use result not only from direct consumption of tobacco, but also from exposure to second-hand smoke. Approximately 10% of cardiovascular disease is attributed to smoking; however, people who quit smoking by age 30 have almost as low
14637-528: Was 2.9 years, substantially more than, for example, 0.3 years from all forms of direct violence, albeit a significant fraction of the LLE is considered to be unavoidable (such as pollution from some natural wildfires). A landmark study conducted by the World Health Organization and the International Labour Organization found that exposure to long working hours is the occupational risk factor with
14760-459: Was also found between heart disease and exposure to compounds which are no longer permitted in certain work environments, such as phenoxy acids containing TCDD (dioxin) or asbestos . Workplace exposure to silica dust or asbestos is also associated with pulmonary heart disease . There is evidence that workplace exposure to lead, carbon disulphide, phenoxyacids containing TCDD, as well as working in an environment where aluminum
14883-495: Was detected at higher rates, earlier stages, and had more favorable treatment outcomes, which supports widespread investment in such programs. Legislation can also affect smoking prevention and cessation. In 1992, Massachusetts (United States) voters passed a bill adding an extra 25 cent tax to each pack of cigarettes, despite intense lobbying and $ 7.3 million spent by the tobacco industry to oppose this bill. Tax revenue goes toward tobacco education and control programs and has led to
15006-529: Was published in 2000. Ten years after the start of the 4S trial, a follow-up study published on 28 August 2004 in The Lancet , revealed that of those 2,221 people who continued to take simvastatin, there was a further reduction in number of deaths from CHD when compared to those who had switched from placebo to statin at the five year mark. The overall mortality also reduced by 15% at the 10 year mark. The study concluded that secondary prevention with simvastatin in
15129-575: Was the most commonly used skin protection. However, many adolescents purposely used sunscreen with a low sun protection factor (SPF) in order to get a tan. Various Australian studies have shown that many adults failed to use sunscreen correctly; many applied sunscreen well after their initial sun exposure and/or failed to reapply when necessary. A 2002 case-control study in Brazil showed that only 3% of case participants and 11% of control participants used sunscreen with SPF >15. Cervical cancer ranks among
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