Unadjusted odds ratios (95% CI) for infections in the first year of life and subsequent atopy
| Otitis media | Tonsillitis | LRTI | URTI | Urinary | Skin | |
|---|---|---|---|---|---|---|
| No antibiotics | — | — | — | 1.67 (1.23 to 2.27)** | — | — |
| Penicillins | 2.25 (1.56 to 3.23)*** | 1.77 (1.22 to 2.56)** | 1.33 (0.83 to 2.15) | 1.67 (1.16 to 2.41)3-150 | 3.83 (1.45 to 10.08)** | 3.71 (1.65 to 8.33)** |
| Cephalosporins | — | 12.79 (6.06 to 26.93)*** | 10.44 (2.55 to ∞ )*** | 4.17 (1.48 to 11.78)** | 2.87 (1.17 to 7.02)3-150 | 2.08 (0.64 to 6.80) |
| Macrolides | — | 2.50 (1.09 to 5.74)3-150 | 3.65 (1.13 to 11.78)3-150 | 6.26 (1.43 to ∞)*** | 22.96 (3.78 to ∞)*** | 6.26 (0.89 to ∞) |
↵3-150 p<0.05; **p<0.005; ***p<0.0005.
∞ = confidence limit not defined.
LRTI = lower respiratory tract infections, URTI = upper respiratory tract infections.