<Li> The Offspring Cohort, founded in 1971, was a second generation study where children of the Original Cohort were eligible . Spouses were also eligible if they had become pregnant with (or sired) two or more children by a participant in the Offspring Cohort . </Li> <Li> The Omni Cohort, founded in 1994, looked at the possibility of race and heritage in heart factors, as well as the changing racial background of Framingham . It mirrored the Original Cohort by asking people of color to volunteer . </Li> <Li> The Generation Three Cohort, founded in 2002, was a third generation study consisting of children of the Offspring Cohort and / or grandchildren of the Original Cohort participants . Minimum age for acceptance was 20 . </Li> <Li> The Omni Two Cohort, founded in 2003, was a second generation study consisting of children of Omni Cohort participants . While the Original Cohort had been spaced over decades, the Omni Cohort had a much shorter generational window . On account of this, participants as young as 13 years of age were eligible for the Omni Two Cohort . </Li>

Which of the following is true of the framingham heart study