Respiratory involvements among women exposed to the smoke of traditional biomass fuel and gas fuel in a district of Bangladesh

Table 3 Number of subjects with respiratory involvement and odds ratio (OR) according to subgroup

Characteristic	Biomass users with respiratory involvement, n (%)	Gas users^a with respiratory involvement, n (%)	Crude OR		Adjusted OR^b
Characteristic	Biomass users with respiratory involvement, n (%)	Gas users^a with respiratory involvement, n (%)	OR (95 % CI)	p value	OR (95 % CI)	p value
Age in years
15–25	6/37 (16.2)	1/61 (1.6)	11.61 (1.34–100.79)	0.026	2.03 (0.05–82.76)	0.708
26–35	35/96 (36.5)	17/102 (16.7)	2.87 (1.47–5.59)	0.002	3.46 (1.01–11.85)	0.048
36–58	26/91 (28.6)	4/33 (12.1)	2.90 (0.93–9.07)	0.067	6.90 (1.23–38.89)	0.029
Education
No education	39/141 (27.7)	0/0 (0.0)	–	–	–	–
Primary	26/73 (35.6)	3/24 (12.5)	3.87 (1.05–14.23)	0.041	2.96 (0.74–11.78)	0.125
Secondary and above	2/10 (20.0)	19/172 (11.0)	2.01 (0.40–10.19)	0.398	1.51 (0.28–8.01)	0.629
Cooking hours/day
1–3	0/25 (0.0)	2/23 (8.7)	0.00	–	0.00	–
>3	67/199 (33.7)	20/173 (11.6)	3.89 (2.24–6.74)	<0.001	3.67 (1.45–9.29)	0.006
Separate kitchen
Yes	42/175 (24.0)	22/191 (11.5)	2.43 (1.38–4.26)	0.002	2.49 (0.93–6.63)	0.068
No	25/49 (51.0)	0/5 (0.0)	∞	–	∞	–

ISSN: 1347-4715