Fig 3. Differences in the incidence rate (%) of heart attack between the KM2H² and the Standard Care Group.

Note: The generalized mixed effect model was used to compute the adjusted incidence rate. The random intercept and slope and the main effect of time and group were considered. Covariates of age, gender, marital status, income, year of hypertension, adherence to medication, use of alcohol and tobacco were adjusted. The intervention effect (interaction term in the model) was not significant at 3 months (p = .331) and significant at 6 months post intervention (p = .028).