The Framingham Heart Study is a project of Boston University & the National Heart, Lung, & Blood Institute.
The Framingham Heart Study is a project of Boston University & the National Heart, Lung, & Blood Institute.

Original Cohort

The Original Cohort of the Framingham Heart Study consisted of 5,209 respondents of a random sample of 2/3 of the adult population of Framingham, Massachusetts, 30 to 62 years of age by household, in 1948. Exam 32 for the Original Cohort ended in April of 2014.

Research Exam Center staff member helping a participant get ready for a test.
AGE-SEX DISTRIBUTION AT ENTRY (1948)
Age 29-39 40-49 50-62 Totals
Men 835 779 722 2,336
Women 1,042 962 869 2,873
Totals 1,877 1,741 1,591 5,209