Intervention cohort N = 1374 | Control cohort N = 4780 | Odds ratioa | |
---|---|---|---|
n (%) | n (%) | (95% CI) | |
Ever RS virus infection | 75 (5.5) | 209 (4.4) | 1.26 (0.96-1.65) |
Ever intestinal infection | 373 (27.2) | 864 (18.1) | 1.68 (1.46-1.94) |
Ever false croup | 188 (13.7) | 675 (14.2) | 0.96 (0.81-1.14) |
Ever bronchitis | 185 (13.5) | 692 (14.6) | 0.92 (0.77-1.09) |
Ever pneumonia | 87 (6.4) | 345 (7.3) | 0.87 (0.68-1.11) |
Ever used antibioticsb | 601 (44.0) | 2196 (46.1) | 0.92 (0.81-1.03) |