Table 1.
Demographic and baseline characteristics
| Participants (n=2265) | ||
|---|---|---|
| Age (years) | 26·7 (5·1) | |
| 18–19 | 140 (6·2%) | |
| 20–24 | 842 (37·2%) | |
| 25–29 | 744 (32·8%) | |
| 30–35 | 385 (17·0%) | |
| 36–40 | 154 (6·8%) | |
| BMI (kg/m2) | 24·0 (3·6) | |
| ≤20 | 248 (10·9%) | |
| >20 to ≤25 | 1231 (54·3%) | |
| >25 to ≤27 | 330 (14·6%) | |
| >27 to ≤29 | 256 (11·3%) | |
| >29 | 200 (8·8%) | |
| Race* | ||
| White | 1739 (76·8%) | |
| Black | 418 (18·5%) | |
| Asian | 106 (4·7%) | |
| American Indian or Native Alaskan | 27 (1·2%) | |
| Native Hawaiian or Pacific Islander | 15 (0·7%) | |
| Other or unknown | 114 (5·0%) | |
| Ethnicity | ||
| Hispanic or Latina | 651 (28·7%) | |
| Non-Hispanic or non-Latina | 1614 (71·3%) | |
| Marital status | ||
| Never married | 1585 (70·0%) | |
| Married | 535 (23·6%) | |
| Divorced | 95 (4·2%) | |
| Separated | 48 (2·1%) | |
| Widowed | 2 (0·1%) | |
| Education | ||
| College degree or higher | 948 (41·9%) | |
| Some college | 751 (33·2%) | |
| High school diploma or equivalent | 419 (18·5%) | |
| Less than high school | 147 (6·5%) | |
| Parity >0 | 793 (35·0%) | |
| Desired children after the study | ||
| Yes | 1207 (53·3%) | |
| No | 619 (27·3%) | |
| Unsure | 439 (19·4%) | |
| Smoking | ||
| Never smoked | 1590 (70·2%) | |
| Former smoker | 331 (14·6%) | |
| Current smoker | 343 (15·1%) | |
| Unknown | 1 (<0·1%) | |
| Alcohol use history | ||
| Never drank | 584 (25·8%) | |
| Former drinker | 106 (4·7%) | |
| Current drinker | 1575 (69·5%) | |
Data are mean (SD) or n (%). BMI=body-mass index.
*
Multiple races allowed per participant.