Table 3.

Measures of maternal depressive symptoms, depression, and psychiatric medication use during pregnancy in relation to risk of preterm delivery subtypes in the POUCH study (1998–2004).

		Preterm	Preterm Subtype
	N	Unadjusted OR (95% CI)*	Medically Indicated 35–36 wks: Unadjusted OR (95% CI)*	Medically Indicated < 35 wks: Unadjusted OR (95% CI)*	Spontaneous 35–36 wks: Unadjusted OR (95% CI)*	Spontaneous <35 wks: Unadjusted OR (95% CI)*
CES-D† score
CES-D < 24	2503	1.0	1.0	1.0	1.0	1.0
CES-D ≥ 24	507	1.0 (0.7, 1.3)	1.0 (0.5, 2.0)	0.8 (0.3, 2.0)	1.1 (0.7, 1.6)	0.7 (0.4, 1.4)
Prepregnancy history of depression (self-report)
No	2392	1.0	1.0	1.0	1.0	1.0
Yes	624	1.2 (0.9, 1.6)	1.2 (0.7, 2.2)	1.7 (0.9, 3.3)	1.2 (0.7, 2.2)	0.9 (0.4, 2.3)
Depression during pregnancy (self-report)
No	2901	1.0	1.0	1.0	1.0	1.0
Yes	117	1.1 (0.6, 1.9)	0.8 (0.2, 3.4)	3.3 (1.3, 8.6)	0.9 (0.2, 3.6)	0 (0)
Use of medications‡ during pregnancy
No	2822	1.0	1.0	1.0	1.0	1.0
Yes	194	1.4 (0.9, 2.1)	1.3 (0.5, 3.2)	2.5 (1.0, 5.9)	1.6 (0.9, 2.8)	0.4 (0.1, 1.8)

^†Center for Epidemiologic Studies Depression Scale

^‡Include psychiatric medication with or without tranquilizers, sedative, and sleeping pills.

^*Term delivery is reference group.