The relationship between spontaneous abortion and female workers in the semiconductor industry

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 GEE^a
Category	The job matching	(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 worker^b	3437	460 (13.4)	1.18	0.81–1.72	1.11	0.75–1.65
2 category	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

ISSN: 2052-4374