Table 1.
Infant and perinatal mortality per 1000 live births, and candidate explanatory variables by primary care trust in England
| Variable | Median (IQR) | Minimum | Maximum |
|---|---|---|---|
| Infant mortality per 1000 live births | 4.81 (3.80-5.89) | 1.40 | 10.83 |
| Perinatal mortality per 1000 live births | 7.81 (6.69-9.07) | 3.93 | 16.66 |
| Deprivation index | 19.45 (13.34-28.20) | 5.09 | 58.67 |
| Maternity spend per birth (£) | 4569 (3893-5217) | 1897 | 8904 |
| Birth rate by maternal age (%): | |||
| <18 years | 1.95 (1.32-2.86) | 0.41 | 6.05 |
| <16 years | 0.16 (0.10-0.27) | 0.00 | 0.75 |
| >35 years | 19.14 (15.01-23.29) | 9.08 | 39.48 |
| Birth rate by ethnicity (%): | |||
| Mixed race | 0.86 (0.56-1.42) | 0.23 | 4.83 |
| Black | 0.38 (0.18-1.21) | 0.02 | 25.90 |
| Pakistani | 0.18 (0.06-1.11) | 0.01 | 40.76 |
| Indian | 0.51 (0.21-1.66) | 0.04 | 38.02 |
| White | 96.83 (91.47-98.42) | 29.13 | 99.45 |
| Bangladeshi or other Asian | 0.28 (0.13-0.75) | 0.03 | 34.33 |
| Chinese | 0.28 (0.17-0.47) | 0.07 | 2.25 |
IQR = interquartile range.
Ethnic categories: white = white British + white Irish + white other; mixed race = mixed white-Caribbean + mixed white-African + mixed white-Asian + mixed other; black = black Caribbean + black African + black other.