Mortality and other adverse outcome by ethnic group
| Ethnic group | Dutch | Other Western | Turkish/Moroccan | African | South Asian | East Asian | Other non-Western | Unknown | Total | Total | χ2, p-value |
| Number of births | 460543 | 15007 | 34973 | 11605 | 5853 | 10675 | 12541 | 3037 | 554234 | ||
| Percentage (%) | 83 | 3 | 6 | 2 | 1 | 2 | 2 | 1 | |||
| Perinatal mortality per 1000 total births | 7.6 | 5.7 | 9.8 | 13.9 | 12.5 | 6.6 | 11.4 | 8.2 | 7.9 | 4401 | <0.0001 |
| Fetal mortality per 1000 total births | 5.4 | 4.5 | 7.1 | 10.6 | 9.9 | 5.1 | 8.0 | 5.9 | 5.7 | 3135 | <0.0001 |
| During gestation | 4.3 | 3.7 | 5.4 | 8.4 | 8.2 | 4.1 | 6.9 | 5.9 | 4.5 | 2508 | <0.0001 |
| During labour | 1.1 | 0.7 | 1.7 | 2.2 | 1.7 | 0.9 | 1.0 | * | 1.1 | 627 | 0.0001 |
| Early neonatal mortality per 1000 live births | 2.3 | 1.3 | 2.7 | 3.3 | 2.6 | 1.5 | 3.5 | 2.3 | 2.3 | 1266 | 0.0008 |
| Within 24 h after birth | 1.3 | 0.7 | 1.8 | 2.4 | 1.6 | 0.9 | 2.5 | 1.3 | 1.3 | 742 | <0.0001 |
| Early, days 1–6 | 1.0 | 0.5 | 0.9 | 1.0 | 1.0 | 0.6 | 1.0 | 1.0 | 1.0 | 524 | 0.694 |
| Preterm births (%) | 7.8 | 6.3 | 5.6 | 8.9 | 9.5 | 6.1 | 7.2 | 4.8 | 7.6 | 42299 | <0.0001 |
| Low birth weight (%) | 6.6 | 5.0 | 6.1 | 10.0 | 14.3 | 6.2 | 7.6 | 5.0 | 6.7 | 36970 | <0.0001 |
| Congenital anomalies (%) | 2.5 | 2.4 | 2.6 | 2.6 | 2.6 | 2.3 | 2.5 | 1.8 | 2.5 | 13839 | 0.115 |
↵* No value because of low numbers.