Predictors influencing of medication adherence in hemodialysis patients

Abstract

Purpose: The aim of this study was to investigate factors affecting medication adherence in hemodialysis patients. Methods: A convenience sample of 140 patients receiving hemodialysis was selected. Data were collected from December. 1. 2016 to January. 15. 2017 using a self-reported questionnaires including the eight-item Morisky's Medication Adherence Scale Korean version (K-MMAS-8). The collected data were analyzed with a descriptive test, independent t-test, one-way ANOVA, Pearson's correlation coefficient and stepwise multiple regression with SPSS/WIN 23.0. Results: The patients showed a low level of medication adherence (M±SD=5.75±1.65). There were significant differences in medication adherence according to subjective health status (F=6.88, p=.001) and discomfort in taking medication (t=-4.59, p < .001). Expectation of medication (r=.42, p < .001) and disgust of medication (r=-.36, p < .001) were the significant factors related to medication adherence. It was explained by expectation of medication (β=.30, p < 001), disgust of medication (β=-.21, p=.007), discomfort in taking medication (β=.20, p=.010) and subjective health status (β=-.18, p=.016). Conclusion: It is necessary not only to regularly monitor patients' medication behavior but also develop and implement an individualized nursing intervention that reflects expectation and disgust of medication.