Table 1.
Distribution of variables (N = 6,158)
| Variable | Unweighted N (%) / mean (SD) |
Weighted % / mean |
|---|---|---|
| Birth year (mean, SD) | 1960.7 (2.2) | 1960.5 |
| Educational attainment at 25 (years; mean, SD) | 12.8 (2.1) | 13.1 |
| Female (N, %) | 3,219 (52.3) | 49.4 |
| Race / ethnicity (N, %) | ||
| White | 3,159 (51.3) | 75.9 |
| Black | 1,888 (30.7) | 13.4 |
| Hispanic | 847 (13.8) | 4.5 |
| Other race / missing | 264 (4.3) | 6.2 |
| Low cSES (N, %) | 2,616 (42.5) | 31.8 |
| Immigrant (N, %) | 296 (4.8) | 3.0 |
| Southern birth (N, %) | 2,348 (38.1) | 31.5 |
| Rural residence at age 14 years (N, %) | 1,267 (20.6) | 22.4 |
| Outcomes | ||
| PCS at age 50 (mean, SD) | 49.4 (10.0) | 50.0 |
| MCS at age 50 (mean, SD) | 53.0 (8.8) | 53.0 |
Low cSES is low childhood socioeconomic status, defined as mother’s educational attainment < 12 years (sensitivity analyses examine father’s education < 12 years).
PCS is the physical health component summary score
MCS is the mental health component summary score
SD is standard deviation.