Relative risk of fetal death from congenital anomalies and from all other causes of death, by trimester of conception, in children of agricultural workers in the southern and eastern area, 1995–99
| Cause of death and trimester of conception | Crude relative risk | Adjusted relative risk* |
|---|---|---|
| *Adjusted for birth weight, infant’s sex, weeks of gestation, age, marital status, and mother’s economic activity. | ||
| Congenital anomalies | ||
| January–March | 1.00 | 1.00 |
| April–May | 1.83 (0.68 to 4.95) | 1.64 (0.60 to 4.43) |
| June–September | 2.61 (1.01 to 6.73) | 2.45 (0.95 to 6.32) |
| October–December | 1.37 (0.48 to 3.95) | 1.29 (0.45 to 3.74) |
| All other causes of death | ||
| January–March | 1.00 | 1.00 |
| April–May | 1.16 (0.83 to 1.63) | 1.05 (0.75 to 1.48) |
| June–September | 1.06 (0.75 to 1.51) | 1.00 (0.70 to 1.42) |
| October–December | 0.95 (0.66 to 1.35) | 0.90 (0.63 to 1.28) |