Fig. 3

Predictors of cost-related medication nonadherence. HS indicates high school. The number of morbidities was defined as the sum of the following conditions that a respondent was ever told by a doctor or other health professional that he or she had: hypertension, high cholesterol, coronary heart disease, stroke, cancer, diabetes, kidney weak, and insufficient physical activity. Since the analysis results of individual morbidities are consistent with those of the total number of morbidities. Therefore, only the analysis results for the total number of morbidities are presented in Figure. Missing values of covariates less than 5% were filled with multiple imputations. Data on alcohol drinking status, chronic kidney disease, and insufficient physical activity were not surveyed in 2019 which were excluded in the corresponding analysis