Table 1. Demographic characteristics for 106 male infants, Study for Future Families II, 1999–2005.
| n (%) | |
|---|---|
| Center | |
| California | 19 (17.9%) |
| Minnesota | 49 (46.2%) |
| Missouri | 38 (35.8%) |
| Maternal race | |
| Caucasion | 87 (82.1%) |
| Non-White | 18 (17.0%) |
| Unknown | 1 (0.9%) |
| Maternal age category (year) | |
| 18–25 | 21 (19.8%) |
| 25–34 | 61 (57.5%) |
| 35–43.5 | 23 (21.7%) |
| Unknown | 1 (0.9%) |
| Infant age (month) | |
| 2–10 | 22 (20.8%) |
| 10–20 | 44 (41.5%) |
| 20–34 | 40 (37.7%) |
| Infant weight (kg) | |
| 5–8 | 19 (17.9%) |
| 8–12 | 51 (48.1%) |
| 12–18.5 | 36 (34.0%) |
| Infant length (cm) | |
| 57–75 | 26 (24.5%) |
| 75–85 | 37 (34.9%) |
| 85–97.3 | 38 (35.8%) |
| Unknown | 5 (4.7%) |