Table 2.

Association between indoor cold or heat and depressive symptoms (n = 17,491).

Indoor thermal environment	Crude model	Model 1a	Model 2b
	PR (95% CI)	Adjusted PR (95% CI)	Adjusted PR (95% CI)	E-valuec of the adjusted PR from Model 2
Not cold/hot	1.00 (Ref.)	1.00 (Ref.)	1.00 (Ref.)
Cold/hot	1.91 (1.76–2.08)	1.92 (1.77–2.09)	1.57 (1.45–1.71)	2.52

^aAdjusted for age and sex.

^bAdjusted for sex, age, body mass index, educational attainment, income, wealth, marital status, subjective cognitive complaints, walking time, current disease, house type, and duration of residence.

^cE-value presents the minimum strength of association on the risk ratio scale that an unmeasured confounder would need to have with both exposure and outcome to fully explain away the observed association conditional on included covariates.

Abbreviation: PR, prevalence ratio; 95% CI, 95% confidence intervals.