The study was renewed in FY 1992 and again in FY 1998. The 1998 renewal used data and analyses from the four cohorts. It focused on six specific aims: factors influencing coronary heart disease-cardiovascular disease risk long-term in young adult women and men (ages 18 to 39 at baseline); factors influencing coronary heart disease-cardiovascular disease risk long-term in African-American women and men; factors influencing coronary heart disease-cardiovascular disease risk during both earlier and later follow-up (first 15 years and beyond 15 years of follow-up); impact of baseline low risk status on long-term risk of mortality from coronary heart disease, cardiovascular disease, non-cardiovascular disease, and all causes; relationship of habitual intake of multiple food groups to 10 year change in serum cholesterol, blood pressure, weight, and to 30-year risks of death from coronary heart disease, cardiovascular disease, cancers, and all causes; differences in risk factors impact between groups based on sex, race, age, or risk factor status.