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. 2021 Oct 14;9:741637. doi: 10.3389/fpubh.2021.741637

Table 2.

Association of cooking fuels with mortality.

Model Fuel
Clean fuels Solid fuels
Cox regression, HR for mortality (95%CI)
Crude, unadjusted model Ref. 1.17 (1.10–1.25)
Model 1 Ref. 1.15 (1.08–1.23)
Model 2 Ref. 1.10 (1.02–1.18)
Model 3 Ref. 1.08 (1.009–1.17)
Model 4 Ref. 1.09 (1.01–1.18)
N event 1,497 1,743
Mortality (per 100 person-year) 9.35 9.47

Adjustments: Model 1: Sex, age; Model 2: further adjusted residence, smoking, alcohol drinking, dietary diversity score, BMI, marital status, social activity and education; Model 3: further adjusted income, PM 2.5 and city population; Model 4: further adjusted IADL, ADL, MMSE, and chronic disease.

Bold represents p < 0.05.