Framingham Heart Study - Major Findings

Major Findings

Major findings from the Framingham Heart Study, according to the researchers themselves:

1960s

Cigarette smoking increases risk of heart disease. Increased cholesterol and elevated blood pressure increase risk of heart disease. Exercise decreases risk of heart disease, and obesity increases it.

1970s

Elevated blood pressure increases risk of stroke. In women who are postmenopausal, risk of heart disease is increased, compared with women who are premenopausal. Psychosocial factors affect risk of heart disease.

1980s

High levels of HDL cholesterol reduce risk of heart disease.

1990s

Having an enlarged left ventricle of the heart (left ventricular hypertrophy) increases risk of stroke. Elevated blood pressure can progress to heart failure. Framingham Risk Score is published, and correctly predicts 10-year risk of future coronary heart disease (CHD) events. At 40 years of age, the lifetime risk for CHD is 50% for men and 33% for women.

2000s

So called "high normal blood pressure" increases risk of cardiovascular disease (high normal blood pressure is called prehypertension in medicine; it is defined as a systolic pressure of 120–139 mm Hg and/or a diastolic pressure of 80–89 mm Hg). Lifetime risk of developing elevated blood pressure is 90%. Obesity is a risk factor for heart failure. Serum aldosterone levels predict risk of elevated blood pressure. Lifetime risk for obesity is approximately 50%. The "SHARe" project is announced, a genome wide association study within the Framingham Heart Study. Social contacts of individuals are relevant to whether a person is obese, and whether cigarette smokers decide to quit smoking. Four risk factors for a precursor of heart failure are discovered. 30-year risk for serious cardiac events can be calculated. American Heart Association considers certain genomic findings of the Framingham Heart Study one of the top research achievements in cardiology. Some genes increase risk of atrial fibrillation. Risk of poor memory is increased in middle aged men and women if the parents had suffered from dementia.