Does adherence to the therapeutic regimen associate with health related quality of life: Findings from an observational study of type 2 diabetes mellitus patients in Pakistan

Patient adherence with a therapeutic regimen predicts successful treatment and reduces the severity of negative complications. The purpose of this work was to find the relationship between general Health Related Quality of Life (HRQoL) and compliance to the treatment among type 2 diabetes mellitus patients (T2DM) in Sargodha, Pakistan. The research was planned as a cross-sectional survey. T2DM patients attending a tertiary care institute in Sargodha, Pakistan were targeted for the study. The Urdu version of the Morisky Medication Adherence Scale (MMAS-Urdu) and EuroQol Quality of Life Scale were employed to evaluate adherence to treatment regimen and HRQoL correspondingly. Descriptive statistics were used for the elaboration of socio-demographic characteristics. The Spearman rank order test was employed to determine the relationship between medicine adherence and HRQoL. P<0.05 was considered statistically significant. A total of 392 patients were selected for the survey. Most participants were males (n=222, 56.6%) with 5.58±4.09 years of history of T2DM. Majority of respondents (n=137, 34.9%) were categorized in age group of 51 to 60 years with mean age of 50.77±9.671 years. The present study highlighted that individuals with type 2 diabetes mellitus had decreased HRQoL (0.4715±0.3360) and poor medication adherence (4.44±1.8). Significant, yet weak positive correlations were observed between medication adherence and HRQoL (r=0.217 and 0.136 for EQ-5D and EQVAS respectively). Although the association between adherence to therapeutic regimen and HRQoL in the present study cohort was significant, it was rated as weak, hence failed in producing an overall impression on quality of life. The study highlights the need of identifying other individual factors affecting HRQoL among T2DM patients in Pakistan.