Characteristics of children hospitalised with bronchiolitis with and without AOM
| Total | With AOM | Without AOM | |
| Female/male | 66/84 | 40/39 | 26/45 |
| Age ⩽ 3 months | 77 | 38 | 39 |
| Age 3–12 months | 63 | 37 | 26 |
| Age > 12 months | 10 | 4 | 6 |
| Gestational age (weeks) | 39 (2.2) | 39 (2.1) | 39 (2.4) |
| Birth weight (kg) | 2.9 (1) | 3 (0.9) | 2.9 (1) |
| Oxygen supplementation (days) | 2.7 (3) | 2.8 (2.9) | 2.6 (3) |
| WBC × 109/l | 12.8 (4.7) | 12.9 (3.8) | 12.7 (5.5) |
| Neutrophils % | 46 (16) | 46 (16) | 46 (17) |
| ESR (mm/h) | 46 (27) | 51 (26) | 39 (27) |
Data expressed as mean (SD). No significant statistical difference between the two groups was detected.
AOM, acute otitis media; WBC, white blood cell; ESR, erythrocyte sedimentation rate.