Table 4.

Multivariate conditional logistic regression analysis results for primary biogas and wood cookstoves, relative to primary LPG cookstoves (OR = 1.00), subsetted for various kitchen situations and settings, separately by sex.

Kitchen settings	Females			Males
	n	Biogas stove	Wood stove	N	Biogas stove	Wood stove
		OR (95% CI)	OR (95% CI)		OR (95% CI)	OR (95% CI)
All Kitchens (as in Table 3)	645	0.24 (0.06, 0.87)	0.21 (0.08, 0.52)	918	1.41 (0.61, 3.23)	0.80 (0.37, 1.74)
Single kitchen households	588	0.18 (0.04, 0.72)	0.26 (0.09, 0.71)	839	1.66 (0.62, 4.43)	0.79 (0.34, 1.83)
4-wall kitchen households	595	0.15 (0.04, 0.65)	0.10 (0.03, 0.29)	855	1.43 (0.57, 3.59)	0.45 (0.19, 1.06)
Urban households	399	0.36 (0.05, 2.55)	0.52 (0.13, 2.06)	550	5.65 (1.30, 24.60)	1.29 (0.44, 3.81)
Rural households	246	0.11 (0.01, 1.03)	0.08 (0.02, 0.25)	368	0.37 (0.10, 1.40)	0.31 (0.11, 0.90)

Adjusted for age (continuous), income, education, literacy, home ownership, secondary stoves, lighting types used when electricity was unavailable, home heating, use of incense and mosquito coils, cigarette smoking, alcohol consumption, other household member who smokes, and family member with TB in last 10 years.