RESUMO
Objectives: This study aimed to identify the prevalence of medication non-adherence (MNA) and to explore the reasons that influenced MNA among diabetes patients. Design: This study used the explanatory mixed-method design. Phase one comprised of a cross-sectional study followed by phase two of a qualitative study. Setting: This study took place at two public hospitals in the Klang Valley, Malaysia. Participants: About 427 diabetes patients were recruited and 399 of them completed the study. The inclusion criteria were those with age more than 18 years and above, Malaysian citizen, able to understand Malay or English, and were diagnosed with diabetes mellitus for more than one year. The exclusion criteria were those with an intellectual disability and pregnant women. Phase two involved 12 participants recruited from non-adherent patients in phase one of the study. Results: About 46.6% of the patients failed to adhere to the medication. Malays (OR: 1.66, 95%CI: 1.09 to 2.51, p = 0.017), single/widow or divorced (OR: 1.79, 95%CI: 1.05 to 3.05, p = 0.031) and poor HbA1c (OR: 2.57, 95% CI: 1.61 to 4.10, p = < 0.01) were associated with medication non-adherence. Five main categories emerged as the reasons for medication non-adherence, including perceived benefit of Complementary and Alternative medicine, attitude towards drawback of western medication, poor healthcare providers and patients' relationship, undesirable emotional response towards medication intake, as well as restraints in daily routine and cognitive function. Conclusions: There are many reasons for patients' non-adherence to their anti-diabetes medication. These findings are important in identifying the factors that influenced non-adherence to recommend reliable patient-centred care strategies in improving medication non-adherence among patients with diabetes.
RESUMO
Background: The prevalence of diabetes mellitus (DM) is steadily increasing worldwide, with a significant DM population in Asian countries. Adherence to medications is important to achieve good glycaemic control among patients with DM. Thus, patients' adherence to their medication regimen should be determined to optimise DM management. Aims: To determine medication adherence and the relationship between patient profile and medication adherence among patients with type 2 DM (T2DM). Design: Cross-sectional survey. Methods: This study was conducted in a public hospital in Selangor, Malaysia, from December 2016 to June 2017. Data was obtained through administration of the Medication Compliance Questionnaire and an electronic medical records database. Multivariate logistic regression analysis was used to determine the predictors of medication adherence. Results: A total of 232 (95.9% response rate) patients participated in this study. The overall percentage of medication adherence among patients with DM was 55.2%. The majority of participants were female (53.4%), Malay (47.0%), aged 41-64 years (55.2%; mean age, 56.69 years), married (84.5%), unemployed (60.8%) and attended secondary school (53.9%). The factors independently associated with adherence were ethnicity (odds ratio [OR], 1.43; 95% confidence interval [CI]: 1.03-1.99) and haemoglobin A1c (HbA1c) level (OR, 2.71; 95% CI: 1.56-4.72). Conclusions: The medication adherence among patients with DM in a public hospital in Selangor, Malaysia was low. A health intervention emphasising patient-centred care is warranted to improve DM patients' adherence to prescribed medication. Considering that Malaysia has a multi-ethnic population, the patients' ethnicity and their HbA1c levels need to be considered in the implementation of any intervention to improve medication adherence. Impact statement: Medication adherence is influenced by individual patients' characteristics. To improve adherence to the medication regimen, nurses should consider patients' profiles.
