Patient characteristics
| Feature | Non-operative delivery (n = 754) | Forceps delivery (n = 217) | Vacuum delivery (n = 52) | Caesarean section (n = 426) |
|---|---|---|---|---|
| *p<0.05. | ||||
| Birth weight mean (SD) | 3315.2 (400.7)* | 3429.3 (388.2) | 3496.2 (416.7) | 3383.4 (467.8) |
| Ratio male:female | 1.08 | 1.18 | 1.42 | 1.34 |
| Newborns admitted to special care (%) | 24 (3.1)* | 11 (5.0)* | 8 (15.3)* | 25 (5.8)* |
| Age, months, at AOM diagnosis mean (SD) | 18.2 (12.9) | 17.4 (10.8) | 23.7 (12.6)* | 18.9 (13.0) |