Table 3.
Year 0 characteristics of the overall CARDIA cohort, participants eligible for analysis at year 25, and the final study cohort
| Covariate | Entire cohort (n = 5,113) |
All year 25 participants (n = 3,482) |
Study cohort (n = 2,803) |
|---|---|---|---|
| Year 0 baseline characteristics | |||
| Age (y) | 24.8 ± 3.7 | 25.1 ± 3.6 | 25.0 ± 3.6 |
| Sex (% female) | 54.5 (n = 2,785) | 56.6% (n = 1,980) | 57.3% (n = 1,579) |
| Race (% black) | 48.4% (n = 2,637) | 46.9% (n = 1,640) | 46.0% (n = 1,267) |
| Education (y) | 13 ± 2 | 14 ± 2 | 14 ± 2 |
| BMI (kg/m2) | 24.5 ± 5.0 | 24.5 ± 5.0 | 24.0 ± 4.4 |
| SBP (mm Hg) | 110 ± 11 | 110 ± 11 | 110 ± 11 |
| DBP (mm Hg) | 69 ± 10 | 68 ± 9 | 68 ± 9 |
| Total cholesterol (mg/dL) | 177 ± 33 | 177 ± 33 | 177 ± 33 |
| HDL cholesterol (mg/dL) | 53 ± 13 | 53 ± 13 | 53 ± 13 |
| Fasting glucose (mg/dL) | 83 ± 16 | 82 ± 10 | 82 ± 10 |
| Current smoker | 30% (n = 1,544) | 26.7% (n = 927) | 24.7% (n = 679) |
| Year 25 characteristics | |||
| Education (y) | — | 15 ± 3 | 15 ± 3 |
| BMI (kg/m2) | — | 30 ± 7 | 29 ± 7 |
| SBP (mm Hg) | — | 120 ± 16 | 119 ± 16 |
| DBP (mm Hg) | — | 75 ± 11 | 74 ± 11 |
| Total cholesterol (mg/dL) | — | 192 ± 37 | 192 ± 36 |
| HDL cholesterol (mg/dL) | — | 58 ± 18 | 59 ± 18 |
| Fasting glucose (mg/dL) | — | 99 ± 29 | 98 ± 27 |
| Current smoker | — | 17% (n = 589) | 16% (n = 429) |