Table 6.
Odds ratios of spontaneous abortion among generalized estimate equation of all pregnancies, limited to female workers whose first, last, and job held longest were the same
| Category | The job matching | Pregnancy | SA | Crude GEE | Adjusted GEEa | ||
|---|---|---|---|---|---|---|---|
| (N = 3692) | (N = 489) | OR | (95% CI) | OR | (95% CI) | ||
| 3 category | FAB | 2244 | 285 (12.7) | 1.12 | 0.76–1.64 | 1.07 | 0.71–1.60 |
| PKG | 1193 | 175 (14.7) | 1.28 | 0.86–1.91 | 1.19 | 0.79–1.81 | |
| Clerical worker | 255 | 29 (11.4) | 1.0 | 1.0 | |||
| 2 category | Process workerb | 3437 | 460 (13.4) | 1.18 | 0.81–1.72 | 1.11 | 0.75–1.65 |
| Clerical worker | 255 | 29 (11.4) | 1.0 | 1.0 | |||
FAB fabrication process worker, PKG package process worker
GEE generalized estimating equation, SA spontaneous abortion, OR odds ratio, CI confidence interval
aAdjusted for age, BMI, education, smoking, duration of employment, year of conception, study plant
bProcess worker included fabrication process worker and package process worker