Smoking and secondhand smoke exposure and prevalence of depressive symptoms during pregnancy in Japan: baseline data from the Kyushu Okinawa Maternal and Child Health Study

Table 3 Odds ratios (ORs) and 95% confidence intervals (CIs) for depressive symptoms during pregnancy in relation to secondhand smoke exposure in 1183 pregnant women who had never smoked, Kyushu Okinawa Maternal and Child Health Study, Japan, April 2007 to March 2008

	Prevalence (%)	Crude OR (95% CI)	Adjusted OR (95% CI)^a
Secondhand smoke exposure at home
Never	48/351 (13.7)	1.00	1.00
Former	72/436 (16.5)	1.25 (0.84–1.86)	1.18 (0.79–1.78)
Current	76/396 (19.2)	1.50 (1.01–2.23)	1.51 (1.003–2.30)
Secondhand smoke exposure at work
Never	73/503 (14.5)	1.00	1.00
Former	99/550 (18.0)	1.29 (0.93–1.80)	1.05 (0.74–1.50)
Current	24/130 (18.5)	1.33 (0.79–2.19)	1.75 (0.995–3.01)

^a Adjusted for age, gestation, region of residence, number of children, family structure, family income, education, job type, history of depression, and family history of depression

ISSN: 1617-9625