Table 4.

Association between self-recognized ethnicity and hypertension mediated by education level.

Model	Proportion of the mediator effect estimate (95% CI)	p-value
Model 1	0.038 (−0.019 to 0.144)	0.150
Model 2	0.176 (0.059 to 0.714)	0.014
Model 3	0.192 (0.063 to 0.724)	0.018
Model 4	0.135 (0.046 to 0.359)	<0.001
Model 5	−0.022 (−0.135 to 0.081)	0.798
Model 6	−0.054 (−0.232 to 0.003)	0.062

Bold values are statistically significant.

Mediation analysis adjusted for selected covariates.

Model 1: Response variable: hypertension; direct effect: ethnicity; the mediator effect: education.

Model 2: Model 1 plus coal cooking as covariate.

Model 3: Model 2 plus sex as covariate.

Model 4: Model 3 plus age as covariate.

Model 5: Model 4 plus income as covariate.

Model 6: Model 1 plus sex, age and income as covariates.