Prevalence and factors associated with second hand smoke exposure among a sample of pregnant women in Cairo, Egypt

Table 3 Daily mean number of hours of secondhand smoke (SHS) exposure anywhere by husband’s smoking status (N = 192)

	Unadjusted¹		Adjusted²
	Mean (SD)	p-value	Mean (Robust SE)	p-value
Model 1: Husband’s smoking status
Husband does not smoke	0.28 (0.78)		0.76 (0.11)	Ref
Husband smokes	3.09 (1.47)	< 0.0001	2.88 (0.12)	< 0.0001
Model 2: Husband’s indoor smoking status
Husband does not smoke	0.28 (0.78)		0.68 (0.11)	Ref
Husband smokes but not inside the home	0.81 (1.07)		1.20 (0.29)	0.085
Husband smokes inside the home	3.34 (1.28)	0.0001	3.10 (0.12)	< 0.0001
Model 3: Type of product smoked by husband
Husband does not smoke	0.28 (0.78)		0.76 (0.11)	Ref
Husband smokes mostly cigarettes	3.12 (1.47)		2.85 (0.13)	< 0.0001
Husband smokes mostly hookah	2.89 (1.49)	0.0001	3.13 (0.35)	< 0.0001

Note: Four women did not have spouses and were excluded. Four women were missing SHS information and were excluded
¹ Unadjusted analysis was conducted using Wilcoxon-Mann-Whitney and Kruskal Wallis tests for non-parametric data
² Adjusted analysis was conducted using linear regression with robust standard errors, adjusting for women’s current smoking status (smoker vs. non-smoker), age group (16–26 vs. 27 years or older), educational level (primary school or less vs. secondary school or higher), and urban residential area (urban vs. suburban/rural). Adjusted means were calculated using predictive margins

ISSN: 1472-6874