Association between hospital intervention rates (per 5% increase) and perinatal outcomes in all countries
| Late preterm birth | Stillbirth | Early neonatal death | Perinatal death | |
| Obstetric interventions | OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) |
| Labour induction | 1.04 (1.01 to 1.06)** | 1.04 (0.97 to 1.11) | 1.04 (0.98 to 1.10) | 1.04 (0.98 to 1.10)† |
| Prelabour caesarean delivery | 1.04 (0.98 to 1.10) | 0.84 (0.76 to 0.94)**† | 0.92 (0.85 to 0.99)* | 0.87 (0.79 to 0.95)**† |
| Intrapartum caesarean delivery | – | 0.98 (0.86 to 1.12) | 1.02 (0.95 to 1.09)† | 0.99 (0.89 to 1.10)† |
Interaction with country Human Developmental Index: *p<0.05; **p<0.01; †p<0.10.