Table 2.
Association of birth order with suicide attempts and psychiatric disorders
Suicide attempts | Psychiatric disorders | |||||||
---|---|---|---|---|---|---|---|---|
Unadjusted | Adjusteda | Unadjusted | Adjusteda | |||||
OR (CI) | p | OR (CI) | p | OR (CI) | p | OR (CI) | p | |
Birth order (n = 2571) | ||||||||
First born | 1.00 | 0.040b | 1.00 | 0.022b | 1.00 | 0.275b | 1.00 | 0.137b |
Second born | 1.44 (0.99–2.10) | 1.56 (1.05–2.31) | 1.12 (0.76–1.64) | 1.21 (0.81–1.80) | ||||
Third + born | 1.74 (1.10–2.76) | 1.97 (1.17–3.34) | 1.47 (0.92–2.36) | 1.72 (1.01–2.94) | ||||
Linear trend | 1.33 (1.07–1.67) | 0.012 | 1.42 (1.10–1.84) | 0.006 | 1.20 (0.95–1.51) | 0.129 | 1.29 (0.99–1.69) | 0.056 |
aAdjusted for social class, income, maternal age at delivery, gestational age, alcohol consumption during months 1–3 of pregnancy, tobacco smoked during months 1–3 of pregnancy
bWald test