Table 5.

Binary logistic regression predicting likelihood of pregnant women exposed to SHS (n = 1249)

	Unadjusted a		p value	Adjusted b		p value
	OR	95% CI		OR	95% CI
Religionc	0.428	(0.341–0.358)	< 0.001	0.399	(0.312–0.510)	< 0.001
Gravidity timesd	0.819	(0.655–1.024)	0.080	0.731	(0.570–0.937)	0.013
Smoking allowed at homee	1.655	(1.517–1.829)	< 0.001	1.710	(1.549–1.918)	0.001
Husband smoke but not nearby (no tobacco use)f	1.643	(1.281–2.107)	< 0.001	1.568	(1.205–2.041)	0.001
Husband smoke nearby (no tobacco use)f	15.748	(8.376–29.608)	< 0.001	17.438	(9.139–33.276)	< 0.001
Household tobacco user (except husband) smoke nearby (no tobacco use)f	3.040	(1.916–4.823)	< 0.001	2.232	(1.351–3.687)	0.002

Adjusted with age, gravidity times, gestational weeks, knowledge of secondhand smoke harm, religion, location, work status

^aSignificance p < 0.10

^bSignificance p < 0.05

^cReference category: Have a religion (versus non-religion)

^dReference category: Gravidity times of 2 or more (versus the first gravidity)

^eReference category: ‘Allowed’ (versus ‘Never allowed’ and ‘Not allowed, as a general rule’)

^fDefinition: ‘nearby’ is in an extent of 5 m