. Author manuscript; available in PMC: 2021 May 26.

Published in final edited form as: Ecotoxicol Environ Saf. 2021 Feb 24;213:112063. doi: 10.1016/j.ecoenv.2021.112063

Table 4.

Sensitivity analyses for associations of stroke mortality with 10 μg/m³ increase in PM_2.5.

Sensitivity analysis	No. of Deaths	Person-years of follow-up	Hazard ratio (95% CI)	p-value
Excluding 2118 participants with CVD at baseline
Cox Regression Model 4^a	244	355,178	1.29 (1.02–1.64)	0.032
Excluding 2746 participants with occupational particulate matter exposure at baseline
Cox Regression Model 4^a	235	348,854	1.32 (1.04–1.68)	0.022
Adjusting for dietary factors in addition to the covariates of Model 4
Cox Regression Model 5^b	254	375,876	1.31 (1.04–1.66)	0.022

Model 4: adjusted for age, sex, education, personal monthly income (< 500 Yuan vs ≥ 500 Yuan), BMI, smoke (yes vs no), drink (yes vs no), physical activity (inactive vs active), history of hypertension (yes vs no) and diabetes (yes vs no).

Model 5: Model 4 + dietary frequency per week (i.e., low, moderate, or high) for red meat, poultry, seafood, vegetable, and fruit.