Table 3.

Multivariate Analysis of Adverse Pregnancy Outcomes Among Female Workers

		N	Miscarriage		Premature birth		Congenital anomaly
			OR	95% CI	OR	95% CI	OR	95% CI
Age		184	1.08	0.98, 1.18	1.14	0.89, 1.46	1.04	0.87, 1.23
Education
High school (reference)		74	1.0 (reference)		1.0 (reference)		1.0 (reference)
College		110	0.93	0.38, 2.31	0.37	0.04, 3.55	1.10	0.22, 5.37
Year of conception
< 1999 (reference)		141	1.0 (reference)		1.0 (reference)		1.0 (reference)
>=1999 (vs < 1999)		43	2.76	0.89, 8.57	1.09	0.04. 33.23	0.74	0.12, 4.42
Employment area
Before employment (reference)		116	1.0 (reference)		1.0 (reference)		1.0 (reference)
Production		22	0.42	0.10, 1.71			3.43	0.44, 26.97
Lab		26	0.38	0.09, 1.59			7.89	1.16, 53.77
Administration		19	0.94	0.26, 3.39			1.85	0.15, 22.14
Medical condition during pregnancy*
No (reference)		176	1.0 (reference)		1.0 (reference)		1.0 (reference)
Yes		8	**		**		1.80	0.17, 19.32
Smoked during pregnancy
No (reference)		148	1.0 (reference)		1.0 (reference)		1.0 (reference)
Yes		36	0.70	0.21, 2.38	**		1.17	0.18, 7.43
Drank alcohol during pregnancy
No (reference)		175	1.0 (reference)		1.0 (reference)		1.0 (reference)
Yes		9	0.85	0.09, 7.66	8.90	0.57, 139.86	**

^*Hypertension, diabetes,eclampsia,thyroid disorder, or systemic lupus

^**Unable to calculate due to small number of cases