Table 3,
online only. Participant characteristics according to maternal reported diagnosis of child Strengths and Difficulties Questionnaire (SDQ) borderline behavioral problem among all singletons and one randomly selected twin of each pair
| Sociodemographic characteristics | All | Child borderline behavioral problems, SDQ | ||||
|---|---|---|---|---|---|---|
| Emotional symptoms | Peer relationship problems | Conduct problems | Hyperactivity/ inattention | Prosocial behaviors | ||
| Overall, n (%) | 1651 (100) | 167 (100) | 185 (100) | 172 (100) | 188 (100) | 73 (100) |
| Maternal Characteristics | ||||||
| Age, years, mean ± SD | 31.27 ± 5.89 | 30.60 ± 6.45 | 30.14 ± 6.14 | 30.79 ± 6.60 | 30.58 ± 6.28 | 31.04 ± 6.56 |
| Non-Hispanic white, n (%) | 1412 (85.52) | 145 (86.83) | 145 (78.38) | 137 (79.65) | 161 (85.64) | 60 (82.19) |
| Education, n (%) | ||||||
| Less than high school | 53 (3.21) | 11 (6.59) | 11 (5.95) | 13 (7.56) | 9 (4.79) | 4 (5.48) |
| High school of GED equivalent | 158 (9.57) | 25 (14.97) | 28 (15.14) | 34 (19.77) | 40 (21.28) | 14 (19.18) |
| Some college | 421 (25.50) | 38 (22.75) | 54 (29.19) | 45 (26.16) | 43 (22.87) | 21 (28.77) |
| College | 414 (25.08) | 31 (18.56) | 34 (18.38) | 33 (19.19) | 37 (19.68) | 12 (16.44) |
| Advanced degree | 605 (36.64) | 62 (37.13) | 58 (31.35) | 47 (27.33) | 59 (31.38) | 22 (30.14) |
| Private insurance, n (%) | 1354 (82.01) | 122 (73.05) | 131 (70.81) | 116 (67.44) | 138 (73.40) | 49 (67.12) |
| Married or living as married, n (%) | 1468 (91.35) | 147 (89.09) | 151 (83.89) | 146 (85.88) | 161 (86.56) | 62 (88.57) |
| History of an affective disorder, n (%) | 288 (17.72) | 57 (34.34) | 42 (23.08) | 41 (23.84) | 51 (27.27) | 19 (26.03) |
| Diagnosis of polycystic ovary syndrome, n (%) | 194(11.97) | 31 (18.67) | 25 (13.74) | 21 (12.21) | 29 (15.51) | 12 (16.44) |
| Smoking during pregnancy, n (%) | 162 (9.82) | 16 (9.58) | 29 (15.68) | 28 (16.28) | 30 (15.96) | 15 (20.55) |
| Alcohol use during pregnancy, n (%) | 209 (12.67) | 17 (10.18) | 24 (12.97) | 20 (11.63) | 31 (16.49) | 8 (10.96) |
| BMI, kg/m2, mean ± SD | 26.88 ± 6.98 | 28.25 ± 7.48 | 27.55 ± 7.22 | 27.66 ± 7.65 | 28.13 ± 7.03 | 27.87 ± 8.11 |
| Paternal characteristics | ||||||
| Age, years, mean ± SD | 33.62 ± 6.70 | 32.94 ± 6.93 | 32.99 ± 7.13 | 33.26 ± 7.58 | 32.91 ± 6.94 | 33.15 ± 7.59 |
| History of an affective disorder, n (%) | 127 (7.82) | 24 (14.46) | 19 (10.44) | 15 (8.72) | 23 (12.30) | 6 (8.22) |
| BMI, kg/m2, mean ± SD | 28.27 ± 5.46 | 28.54 ± 6.23 | 27.75 ± 5.82 | 28.25 ± 5.99 | 28.06 ± 5.56 | 27.45 ± 6.26 |
| Child characteristics | ||||||
| Child sex, male, n (%) | 876 (53.06) | 77 (46.11) | 115 (62.16) | 106 (61.63) | 135 (71.81) | 52 (71.23) |