Distribution of participant sociodemographic and behavioural characteristics by childhood and adolescent abuse exposures
| Variable | N (%) | Sexual abuse in childhood or adolescence* | Childhood trauma questionnaire score* | Physical abuse in childhood or adolescence* | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| No sexual abuse (%) | Touch only (%) | Forced sex (%) | 6–20 (%) | 21–30 (%) | None (%) | Mild (%) | Moderate (%) | Severe (%) | ||
| Total | 51 434 (100) | 34 144 (67) | 11 403 (22) | 5570 (11) | 47 376 (92) | 4049 (8) | 23 752 (46) | 9669 (19) | 13 615 (27) | 4250 (8) |
| Maternal age | 27 (5) | 27 (5) | 27 (5) | 26 (5) | 27 (5) | 26 (5) | 27 (5) | 27 (5) | 27 (5) | 26 (5) |
| Maternal race | ||||||||||
| Non-Hispanic white | 48 006 (95) | 95 | 94 | 94 | 95 | 93 | 96 | 95 | 93 | 94 |
| Other race | 2676 (5) | 5 | 6 | 6 | 5 | 7 | 4 | 5 | 7 | 6 |
| Highest parental education†‡ | ||||||||||
| Less than high school | 4845(11) | 9 | 13 | 14 | 10 | 15 | 9 | 10 | 12 | 15 |
| 4 years high school | 19 144 (42) | 41 | 42 | 43 | 41 | 44 | 40 | 41 | 44 | 43 |
| 1–3 years college | 11 316 (25) | 25 | 24 | 24 | 25 | 23 | 25 | 25 | 24 | 24 |
| 4+ years college | 10 700 (23) | 25 | 21 | 19 | 24 | 18 | 26 | 24 | 20 | 18 |
| Parents home owners†‡ | ||||||||||
| Owned home | 24 947 (54) | 55 | 53 | 52 | 55 | 49 | 57 | 54 | 52 | 49 |
| Age at menarche (years) | ||||||||||
| Before 11 | 3749 (7) | 7 | 8 | 10 | 7 | 9 | 7 | 7 | 7 | 9 |
| 11–14 | 43 780 (85) | 86 | 86 | 82 | 86 | 83 | 86 | 85 | 85 | 83 |
| 15 or more | 3761 (7) | 8 | 6 | 8 | 7 | 8 | 7 | 8 | 8 | 8 |
| Body mass index at age 18 | ||||||||||
| Underweight (<18.5) | 7539 (15) | 16 | 13 | 14 | 15 | 14 | 15 | 15 | 15 | 15 |
| Normal weight (18.5–24.9) | 39 326 (77) | 77 | 78 | 76 | 77 | 75 | 78 | 77 | 76 | 75 |
| Overweight (25–29.9) | 3361 (7) | 6 | 7 | 8 | 6 | 8 | 6 | 7 | 7 | 8 |
| Obese (over 30) | 817 (2) | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 2 | 2 |
| Physical abuse in pregnancy | ||||||||||
| No abuse | 50 018 (97) | 98 | 97 | 95 | 98 | 93 | 99 | 97 | 97 | 93 |
| Weekly prenatal alcohol use | ||||||||||
| 0 drinks | 44 070 (86) | 86 | 85 | 84 | 86 | 85 | 87 | 83 | 85 | 84 |
| 1–4 drinks | 6935 (14) | 13 | 14 | 14 | 13 | 14 | 12 | 16 | 14 | 15 |
| 5 or more drinks | 353 (1) | 0.6 | 0.7 | 1 | 1 | 1 | 0.5 | 0.7 | 0.9 | 1 |
| Daily prenatal cigarette use | ||||||||||
| None | 45 086 (88) | 89 | 87 | 83 | 88 | 83 | 90 | 86 | 87 | 82 |
| Less than 1 up to 4 | 2110 (4) | 4 | 5 | 5 | 4 | 5 | 3 | 5 | 4 | 6 |
| 5–14 cigarettes | 2098 (4) | 4 | 4 | 6 | 4 | 5 | 3 | 4 | 4 | 6 |
| 15+ cigarettes | 2080 (4) | 3 | 5 | 7 | 4 | 7 | 3 | 5 | 5 | 7 |
| Baseline marital status | ||||||||||
| Married | 44 315 (86) | 87 | 86 | 83 | 87 | 82 | 87 | 87 | 86 | 83 |
| Family income 2005‡ | ||||||||||
| <50 000 | 6121 (15) | 14 | 15 | 19 | 14 | 19 | 14 | 14 | 15 | 19 |
| 50 000–74 000 | 11 100 (26) | 26 | 27 | 29 | 26 | 26 | 27 | 25 | 27 | 27 |
| 75 000–99 000 | 9249 (22) | 22 | 22 | 21 | 22 | 21 | 22 | 22 | 22 | 20 |
| 100 000–149 000 | 9999 (24) | 25 | 23 | 21 | 24 | 22 | 24 | 24 | 24 | 22 |
| 150 000+ | 5552 (13) | 14 | 12 | 10 | 13 | 12 | 13 | 15 | 13 | 12 |
*Values are means (SDs) or percentages.
†At participant's birth.
‡Not all participants returned this questionnaire.