Table 4.

Effect of HAP on depression stratified by gender, age and BMI

Outcomes	Age			Gender			BMI
	>=65 yrs.	<65 yrs.	p a	Female	Male	p a	BMI>=25	BMI<25	p a
CES-D
current solid fuel users	0.54 (0.16, 0.92)	0.43 (−0.09, 0.95)	0.04	0.61 (0.2, 1.02)	0.37 (0.01, 0.75)	0.01	0.72 (0.33, 1.11)	0.25 (−0.28, 0.77)	0.04
duration more than 5yrs.	0.73 (0.25, 1.2)	0.55 (0.17, 0.93)	0.55	0.81 (0.4, 1.21)	0.37 (−0.02, 0.76)	0.01	0.63 (0.25, 1.01)	0.59 (0.02, 1.15)	0.01
Depression (cutoff=10)
current solid fuel users	1.29 (1.11, 1.49)	1.17 (0.98, 1.4)	0.09	1.3 (1.12, 1.51)	1.18 (1, 1.41)	0.03	1.28 (1.1, 1.49)	1.22 (0.99, 1.5)	0.09
duration more than 5yrs.	1.26 (1.07, 1.49)	1.25 (1.09, 1.44)	0.89	1.27 (1.09, 1.46)	1.25 (1.06, 1.47)	0.51	1.28 (1.03, 1.57)	1.24 (1.08, 1.43)	0.51
Depression (cutoff=12)
current solid fuel users	1.31 (1.11, 1.53)	1.19 (0.98, 1.45)	0.04	1.28 (1.1, 1.49)	1.24 (1.02, 1.51)	0.67	1.31 (1.12, 1.53)	1.19 (0.94, 1.5)	0.13
duration more than 5yrs.	1.27 (1.1, 1.47)	1.24 (1.04, 1.48)	0.95	1.28 (1.06, 1.55)	1.25 (1.09, 1.43)	0.95	1.22 (1.01, 1.49)	1.17 (0.93, 1.48)	0.46

Notes: CES-D, Center for Epidemiological Studies Depression Scale; BMI, Body Mass Index.

^ap-value indicating the statistical significance of the modification effects.

All the models were regressed separately and adjusted by covariates as aforementioned using the matched data.

95% CI was reported based on standard errors clustered at the community level.