Table 2.
Independent factors associated with antepartum stillbirth, corrected for confounding variables, from 37 weeks of gestation onwards. Values are odds ratios (95% confidence interval)
| Factor | Ethnic group | |||
|---|---|---|---|---|
| All groups | White | South Asian | Black | |
| Placental abruption | 21.2 (10.9 to 41.2) | 16.7 (7.7 to 36.2) | 28.4 (5.3 to 106.3) | — |
| Meconium stained liquor | 6.5 (4.8 to 8.8) | 7.9 (5.6 to 11.3) | 3.7 (2.2 to 7.0) | 4.4 (1.9 to 10.2) |
| Birth weight (g) | ||||
| <2000 | — | — | 60.5 (10.7 to 330.6) | 49.6 (10.5 to 233) |
| 2000-2499 | — | — | 13.9 (2.9 to 63.0) | 7.3 (1.8 to 29.4) |
| 4000-4499 | — | — | 10.3 (1.9 to 58.7) | — |
| Centile | ||||
| <3rd | 4.8 (1.9 to 12.2) | 6.6 (4.0 to 10.6) | — | — |
| 3rd-9th | 4.4 (2.2 to 8.7) | 3.6 (2.2 to 5.7) | — | — |
| Maternal fever | 3.6 (2.1 to 6.1) | 3.7 (1.9 to 7.1) | 5.2 (2.0 to 12.1) | — |
| Fetal congenital abnormality | 3.3 (1.9 to 6.0) | 2.9 (1.4 to 5.9) | — | — |
| Maternal body mass index* | ||||
| ≥30 | 2.2 (1.4 to 3.3) | 1.9 (1.2 to 3.0) | 3.7 (1.5 to 8.8) | — |
| <20 | 0.5 (0.3 to 0.9) | 0.3 (0.1 to 0.8) | — | — |
| Maternal age ≥30† | 1.8 (1.4 to 2.5) | 1.8 (1.3 to 2.5) | 1.9 (1.3 to 3.3) | — |
| South Asian | 1.8 (1.2 to 2.7) | |||
*Reference group 20-24.
†Reference group 20-29 years.
Non-significant variables were maternal hypertensive disorders, diabetes mellitus, smoking, urinary tract infection, late prenatal care beyond 20 weeks' gestation, unreliable date for last menstrual period, marital status, Carstairs' deprivation score, and fetal sex.