Table 2,
online only. Participant characteristics according to maternal reported diagnosis of child ADHD or anxiety among all singletons and one randomly selected twin of each pair
| Sociodemographic characteristics | All | Child mental health disorder | |
|---|---|---|---|
| ADHD | Anxiety disorder | ||
| Overall, n (%) | 1651 (100) | 148 (100) | 125 (100) |
| Maternal Characteristics | |||
| Age, years, mean ± SD | 31.27 ± 5.89 | 29.99 ± 6.86 | 30.9 ± 6.20 |
| Non-Hispanic white, n (%) | 1412 (85.52) | 118 (79.73) | 111 (88.80) |
| Education, n (%) | |||
| Less than high school | 53 (3.21) | 9 (6.08) | 7 (5.60) |
| High school of GED equivalent | 158 (9.57) | 28 (18.92) | 13 (10.40) |
| Some college | 421 (25.50) | 48 (32.43) | 35 (28.00) |
| College | 414 (25.08) | 23 (15.54) | 21 (16.80) |
| Advanced degree | 605 (36.64) | 40 (27.03) | 49 (39.20) |
| Private insurance, n (%) | 1354 (82.01) | 108 (72.97) | 98 (78.40) |
| Married or living as married, n (%) | 1468 (91.35) | 120 (82.19) | 108 (87.80) |
| History of affective disorder, n (%) | 288 (17.72) | 43 (29.25) | 47 (37.90) |
| Diagnosis of polycystic ovary syndrome, n (%) | 194(11.97) | 22(15.07) | 23 (18.70) |
| Smoking during pregnancy, n (%) | 162 (9.82) | 28 (18.92) | 16 (12.80) |
| Alcohol use during pregnancy, n (%) | 209 (12.67) | 20 (13.51) | 16 (12.80) |
| BMI, kg/m2, mean ± SD | 26.88 ± 6.98 | 29.16 ± 7.61 | 27.79 ± 6.71 |
| Paternal characteristics | |||
| Age, years, mean ± SD | 33.62 ± 6.70 | 32.86 ± 7.57 | 33.65 ± 7.48 |
| History of an affective disorder, n (%) | 127 (7.82) | 14 (9.52) | 10 (8.06) |
| BMI, kg/m2, mean ± SD | 28.27 ± 5.46 | 29.07 ± 5.85 | 28.09 ± 5.37 |
| Child characteristics | |||
| Child sex, male, n (%) | 876 (53.06) | 110 (74.32) | 72 (57.60) |