Table 1.
Demographic and obstetric characteristics by adult psychiatric outcome
| Psychosis cases (n = 90) | Siblings of cases (n = 79) | Controls (n = 273) | X2/F | p | |
|---|---|---|---|---|---|
| Female, n (%) | 42 (46·7%) | 42 (53·2%) | 121 (44·3%) | 1·93 | ·38 |
| African-American | 84 (93·3%) | 74 (96·1%) | 250 (91·6%) | 1·89 | ·39 |
| SES (0=low, 99=high) | 37·64 (19·51) | 35·53 (16·46) | 41·03 (16·90) | 2·96 | ·053 |
| Maternal Education (years completed) | 39·80 (24·11) | 37·82 (21·94) | 43·82 (21·32) | 2·28 | ·10 |
| Maternal Age (years) | 23·99 (7·13) | 23·53 (5·32) | 24·42 (6·23) | ·65 | ·52 |
| Maternal Parity | 2·56 (2·59) | 3·25 (2·56) | 2·50 (2·55) | 2·25 | ·11 |
| First Born | 24 (26·7%) | 8 (10·4%) | 55 (20·1%) | 7·0 | ·030 |
| Overweight/Obese (Pre-Pregnancy) | 21 (27·3%) | 26 (35·1%) | 80 (32·0%) | 1·13 | ·89 |
| Smoked During Pregnancy | 50 (56·8%) | 47 (61·0%) | 128 (47·8%) | 5·27 | ·072 |
| Antibiotics during pregnancy | 34 (37·8%) | 21 (26·6%) | 73 (26·7%) | 4·15 | ·13 |
| Maternal Health Condition During Pregnancy15 | 54 (60·7%) | 45 (58·4%) | 161 (59·6%) | ·08 | ·96 |
| Hypoxic Complications15 | 56 (62·2%) | 38 (49·4%) | 160 (58·6%) | 3·05 | ·22 |
| Preterm Birth | 18 (20·0%) | 14 (17·8%) | 55 (20·1%) | ·24 | ·89 |
| Number of Samples | 2·63 (0·68) | 2·76 (·80) | 2·78 (·72) | 1·053 | ·35 |
SES, socio-economic status; BMI, body mass index