Table 2 Demographic, births and perinatal mortality data for all births and very preterm births in Nord Pas‐de‐Calais (NPC) and Trent regions, 1997.
| NPC | Trent | |||
|---|---|---|---|---|
| Data on all births in 1997 (routine statistics) | ||||
| Population (million) | 3.97 | 4.60 | ||
| Population density (n/km2) | 262.5 | 321.5 | ||
| Number of obstetric units | 50 | 20 | ||
| Number of neonatal units | 16 | 17 | ||
| Live births | 54 815 | 59 394 | ||
| Births to mothers <20 years (%) | 3.7 | 8.7 | ||
| Births to mothers 40+years (%) | 2.0 | 1.6 | ||
| Births outside marriage (%) | 41.1 | 39.9 | ||
| Total period fertility rate | 1.87 | 1.68 | ||
| Perinatal mortality in 1997 (routine statistics) (rate (95% CI)) | ||||
| Published stillbirth rate* | 5.1 (4.5 to 5.8) | 5.0 (4.5 to 5.6) | ||
| Stillbirth rate standardised to French definition | 3.7 (3.2 to 4.3)↓ | |||
| Published perinatal mortality rate* | 7.7 (7.0 to 8.5) | 7.9 (7.2 to 8.6) | ||
| Perinatal mortality rate standardised to French definition | 6.7 (6.0 to 7.5) | |||
| Neonatal mortality rate† | 3.2 (2.7 to 3.8) | 4.0 (3.5 to 4.6) | ||
| Very preterm babies in 1997 (study data) | ||||
| All births 22–32 weeks' gestation (n) | 929 | 1224 | ||
| Terminations of pregnancy and lethal anomalies (n) | 109 | 75 | ||
| Births 22–32 weeks gestation excluding terminations (n and % of all births) | 820 | 1.5 (1.4 to 1.6) | 1149 | 1.9 (1.7 to 2.1)↑ |
| Stillbirths (n and % very preterm infants) | 189 | 23.0 (20.0 to 26.5) | 165 | 14.4 (12.3 to 16.6)↓ |
| Death in hospital (n and % very preterm infants) | 84 | 10.2 (8.3 to 12.8) | 127 | 11.1 (9.3 to 13.1) |
| Babies surviving to discharge (n and % very preterm infants) | 547 | 66.7 (63.3 to 69.9) | 857 | 74.6 (71.9 to 77.1)↑ |
Sources of routine data: Office of National Statistics for Trent and National Institute for Statistics and Economic Studies (INSEE) for NPC.
*Rate per 1000 total births; †Rate per 1000 live births.
↓Significantly lower than NPC; ↑Significantly higher than NPC