Neonatal mortality of the study group stratified by admitting hospital A to H
| Hospital | A (n=1225) | B (n=1000) | C (n=963) | D (n=889) | E (n=856) | F (n=848) | G (n=785) | H (n=646) | All (n=7212) |
| Observed mortality | 107 (8.7) | 69 (6.9) | 100 (10.4) | 71 (8.0) | 45 (5.3) | 69 (8.1) | 63 (8.0) | 48 (7.4) | 572 (7.9) |
| Expected mortality | 94 (7.7) | 89 (8.9) | 83 (8.6) | 70 (7.8) | 58 (6.7) | 63 (7.4) | 56 (7.2) | 47 (7.3) | 560 (7.8) |
| Standardised mortality ratio | 1.14 (0.94–1.37) | 0.77 (0.61–0.97) | 1.21 (0.98–1.46) | 1.06 (0.84–1.32) | 0.78 (0.57–1.03) | 1.10 (0.86–1.38) | 1.12 (0.87–1.43) | 1.02 (0.76–1.34) | 1.02 (0.94–1.11) |
| Risk-adjusted mortality | 110 (9.0) | 61 (6.1) | 92 (9.6) | 72 (8.1) | 53 (6.2) | 74 (8.7) | 69 (8.8) | 52 (8.1) | 584 (8.1) |
Data are presented as n (%) (95% CI). Expected hospital mortality was calculated using a multiple logistic regression model adjusted for ethnicity, assisted conception, multiple gestation, hypertensive disease of pregnancy, antenatally diagnosed malformation, chorioamnionitis, any antenatal steroids, outborn, method of birth, gender, gestational age, birth weight percentiles, Apgar score <7 at 5 min and postnatal steroid.