Unadjusted (OR) and adjusted odds ratios (aOR) with 95% confidence intervals for infantile colic
| All children | Children ⩾ 37 completed gestational weeks | ||||||
|---|---|---|---|---|---|---|---|
| N | OR | aOR | N | OR | aOR | ||
| Birth weight (g)2-150 | |||||||
| < 2500 | 61 | 2.9 (1.6–5.4) | 2.7 (1.2–6.1) | 24 | 3.7 (1.5–8.5) | 3.3 (1.3–8.5) | |
| 2500–3499 | 845 | 1.1 (0.8–1.5) | 1.0 (0.7–1.4) | 808 | 1.1 (0.8–1.5) | 1.0 (0.7–1.4) | |
| 3500–4499 | 992 | 1 (reference) | 1 (reference) | 987 | 1 (reference) | 1 (reference) | |
| 4500+ | 57 | 1.5 (0.7–3.2) | 1.5 (0.7–3.4) | 57 | 1.5 (0.7–3.2) | 1.5 (0.7–3.4) | |
| Gestational age (completed weeks)2-151 | |||||||
| < 37 | 79 | 1.6 (0.8–2.9) | 0.9 (0.4–2.0) | ||||
| 37–41 | 1646 | 1 (reference) | 1 (reference) | 1646 | 1 (reference) | 1 (reference) | |
| 42+ | 227 | 0.6 (0.4–1.1) | 0.6 (0.4–1.1) | 227 | 0.7 (0.4–1.1) | 0.6 (0.4–1.1) | |