Table 1.
Demographic and reproductive characteristics by maternal pre-pregnancy BMI categories, 1996–2002, 469 mother-child pairs
| Pre-pregnancy BMI Category | |||
|---|---|---|---|
|
| |||
| Characteristic | Normal (n=305) n (%) |
Overweight (n=101) n (%) |
Obese (n=63) n (%) |
| Maternal Race | |||
| White, non-Hispanic | 232 (76.1) | 76 (75.3) | 48 (76.2) |
| Hispanic | 30 (9.8) | 12 (11.9) | 10 (15.9) |
| Black, non-Hispanic | 25 (8.2) | 12 (11.9) | 3 (4.8) |
| Other | 18 (5.9) | 1 (1.0) | 2 (3.2) |
|
| |||
| Maternal Age at Conception | |||
| ≤ 25 | 73 (23.9) | 26 (25.7) | 12 (19.1) |
| 26– 34 | 179 (58.7) | 59 (58.4) | 40 (63.5) |
| ≥ 35 | 53 (17.4) | 16 (15.8) | 11 (17.5) |
|
| |||
| Maternal Education (years) | |||
| < 12 | 23 (7.5) | 10 (9.9) | 7 (11.1) |
| 12 | 58 (19.0) | 20 (19.8) | 14 (22.2) |
| 13–15 | 65 (21.3) | 34 (33.7) | 16 (25.4) |
| ≥ 16 | 158 (51.8) | 37 (36.6) | 26 (41.3) |
| Missing | 1 (0.3) | 0 (0.0) | 0 (0.0) |
|
| |||
| Marital Status | |||
| Married/Cohabitating | 268 (87.8) | 91 (90.1) | 58 (92.1) |
| Single/Divorced/Separated | 37 (12.1) | 10 (9.9) | 5 (7.9) |
|
| |||
| Family Income (USD) | |||
| ≤ 25,000 | 45 (14.8) | 16 (15.8) | 17 (27.0) |
| 25,001 – 35,000 | 31 (10.2) | 15 (14.9) | 9 (14.3) |
| 35,001 – 65,000 | 88 (28.9) | 42 (41.6) | 24 (38.1) |
| ≥ 65,000 | 127 (41.6) | 24 (23.8) | 11 (17.5) |
| Missing | 14 (4.6) | 4 (4.0) | 2 (3.2) |
|
| |||
| Parity | |||
| 0 | 140 (45.9) | 41 (40.6) | 25 (39.7) |
| 1 | 113 (37.1) 52 | 38 (37.6) | 22 (34.9) |
| ≥2 | (17.1) | 22 (21.8) | 16 (25.4) |
|
| |||
| Periconceptionala Smoking | |||
| Non-smoker | 267 (87.5) | 84 (83.2) | 55 (87.3) |
| Smoker | 38 (12.5) | 17 (16.8) | 8 (12.7) |
|
| |||
| Periconceptionala Alcohol Use | |||
| Non-Drinkers | 148 (48.5) | 61 (60.4) | 35 (55.6) |
| < 3 per sitting | 72 (23.6) | 17 (16.8) | 11 (17.5) |
| ≥ 3 per sitting | 85 (27.9) | 23 (22.8) | 17 (27.0) |
|
| |||
| Infant Sex at Birth | |||
| Female | 150 (49.2) | 57 (56.4) | 32 (50.8) |
| Male | 155 (50.8) | 44 (43.6) | 31 (49.2) |
|
| |||
| Child Age at Assessments (years) | |||
| 5–6 | 140 (45.9) | 49 (48.5) | 22 (34.9) |
| 7 | 113 (37.0) | 38 (37.6) | 31 (49.2) |
| 8–11 | 52 (17.0) | 14 (13.9) | 10 (15.9) |
a
Periconceptional defined as the lunar month before and after the last menstrual period.