Everything about The Framingham Heart Study totally explained
The
Framingham Heart Study is a
cardiovascular study based in
Framingham, Massachusetts. The study began in 1948 with 5,209 adult subjects from Framingham, and is now on its third generation of participants. Much of the now-common knowledge concerning heart disease, such as the effects of
diet,
exercise, and common medications such as
aspirin, is based on this
longitudinal study. It is a project of the
National Heart, Lung, and Blood Institute, in collaboration with (since 1971)
Boston University. Various health professionals from the hospitals and universities of
Greater Boston staff the project.
Thomas Royle Dawber (1949-66) was appointed as chief epidemiologist shortly after the start of the project, when it wasn't progressing well.
The study had been intended to last 20 years, but at that time Dawber moved to Boston and became a preventive medicine chair, raising funds to continue the project and taking it with him.
One of the crucial questions in
evidence-based medicine is how closely the people in a study resemble the patient you're dealing with.
Recently the Framingham studies have become regarded as overestimating risk, particularly in the lower risk groups, for UK populations. There has been widespread discussion of the study, and it's generally accepted that the work is outstanding in its scope and duration, and is overall considered very useful. Researchers recently used contact information given by subjects over the last 30 years to map the
social network of friends and family in the study.
The initial population was 5,209 healthy men and women aged 30 to 60, not the whole of the town population, as is sometimes assumed.
A similar longitudinal study has been carried out in a high proportion of the residents of
Busselton, a town in Western Australia, over a period of many years; however, Framingham is more widely cited.
Footnotes
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