Table 1.
Summary of the i3C Outcomes Study cohorts at enrollment, number of childhood visits, and mean age in 2017, the midpoint of when Heart Health Surveys will be completed.
| Cohort* | Sampling Source | First Visit Year | Total Enrolled | Initial Ages | Race (%White) | Max Number Childhood Visits | Mean (SD) Age in 2017 |
|---|---|---|---|---|---|---|---|
| BHS | Schools | 1973 | 11,961 | 3–18 | 65% | 9 | 45 (8.3) |
| MN | |||||||
| PHBPC | Schools | 1977 | 2,694 | 6–8 | 80% | 20 | 47 (0.8) |
| NaKS | Schools | 1985 | 283 | 11–14 | 86% | 16 | 44 (1.4) |
| INS | Schools | 1995 | 586 | 11–19 | 80% | 3 | 33 (3.3) |
| MUSC | Schools | 1970 | 11,377 | 5–18 | 95% | 6 | 57 (5.8) |
| NGHS | Schools | 1987 | 870 | 9–10 | 50% | 10 | 40 (0.7) |
| PLRS | Schools | 1973 | 2,324 | 5–19 | 73% | 3 | 55 (3.6) |
| CDAH | Schools | 1985 | 8,498 | 7–15 | 97% | 1 | 43 (2.6) |
| YFS | Random | 1980 | 3,596 | 3–18 | 100% | 5 | 48 (5.0) |
*
BHS=Bogalusa Heart Study (Louisiana); MN=Minnesota Childhood Cohort Studies (PHBPC=Prevention of High Blood Pressure in Children; NaKs=Sodium-Potassium BP Trial in Children; INS=Obesity/Insulin Resistance Study); MUSC=Muscatine Study (Iowa); NGHS=NHLBI Growth and Health Study (Ohio); PLRS=Princeton Lipid Research Study (Ohio); CDAH=Childhood Determinants of Adult Health Study (Australia); YFS=Cardiovascular Risk in Young Finns Study (Finland)
Only the Cincinnati clinic of NGHS is included