Risk factors | Pregnancy | Education level | Employment | |||
---|---|---|---|---|---|---|
 | OR (95 % CI) | P | OR (95 % CI) | P | OR (95 % CI) | P |
BMI ≥ 30 | 1.28 (0.53–3.10) | 0.582 | 0.70 (0.29–1.69) | 0.422 | 0.57 (0.12–2.79) | 0.489 |
Medication use | 0.64 (0.41–1.01) | 0.055 | 0.87 (0.56–1.36) | 0.538 | 0.93 (0.33–2.63) | 0.898 |
Smoking, any quantity | 1.45 (0.90–2.35) | 0.130 | 0.52 (0.32–0.84) | 0.008 | 0.60 (0.20–1.75) | 0.347 |
Exposure toenvironmental substances | 1.12 (0.63–1.98) | 0.692 | 0.52 (0.29–0.93) | 0.029 | 1.48 (0.39–5.61) | 0.566 |