Pregnancy outcomes for laboratory technicians and teachers (reference)
| Teachers (n = 8037) | Laboratory technicians (n = 1025) | |||||
|---|---|---|---|---|---|---|
| n | (%) | n | (%) | Crude HR/OR | Adjusted HR/OR (95% CI) | |
| Cox regression for fetal loss and congenital malformations, HR: hazard ratio; logistic regression for other outcomes, OR: odds ratio; CI: confidence interval; adjusted for maternal age, gravidity, history of spontaneous abortion, prepregnancy body mass index, smoking, alcohol consumption, and paternal job (as well as sex of child for preterm, very preterm birth, and congenital malformations). | ||||||
| *Among live births. | ||||||
| †Among singletons. | ||||||
| ‡Excluding births without information on birth weight for laboratory technicians (n = 12) and teachers (n = 132). | ||||||
| Late fetal loss | 106 | 1.3 | 9 | 0.9 | 0.7 | 0.7 (0.4 to 1.4) |
| Multiple births* | 153 | 1.9 | 25 | 2.5 | 1.3 | 1.4 (0.9 to 2.1) |
| Male infant† | 3970 | 51.0 | 502 | 50.7 | 1.0 | 1.0 (0.9 to 1.1) |
| Preterm birth† | 317 | 4.1 | 41 | 4.1 | 1.0 | 1.1 (0.8 to 1.5) |
| Very preterm birth† | 78 | 1.0 | 9 | 0.9 | 0.9 | 1.0 (0.5 to 2.0) |
| Small for gestational age†‡ | 700 | 9.2 | 80 | 8.2 | 0.9 | 0.9 (0.7 to 1.2) |
| All malformations† | 494 | 6.4 | 69 | 7.0 | 1.1 | 1.1 (0.8 to 1.4) |
| “Major” malformations† | 379 | 4.9 | 56 | 5.7 | 1.1 | 1.1 (0.9 to 1.5) |