Abstract
BackgroundStatins are widely utilized antidyslipidemics with a proven track record of safety and efficacy. However, the efficacy of these therapeutic agents hinges on patients’ adherence to their prescribed statins.ObjectiveThe primary objectives of this study were to examine the relationship between adherence to prescribed statins and its impact on the low-density lipoprotein (LDL) level, and to explore the factors that influence patient adherence to statins among patients with diabetes and dyslipidemia.MethodsThis was a retrospective, cross-sectional study using the electronic health records data of adults (≥18 years) with type 2 diabetes and dyslipidemia visiting outpatient clinics at a university-affiliated tertiary care center. Adherence to statin therapy was estimated using the proportion of days covered (PDC). Patients with diabetes were considered adherent to statins if they had a PDC of ≥80%. Treatment success was considered if the LDL level of < 2.6 mmol/L.ResultsOut of 10,226 of patients with diabetes, 1532 met the inclusion criteria and were included in the study. Seventy-nine percent of the patients with diabetes were on atorvastatin and 21% were on simvastatin. The vast majority of the patients with diabetes (77%) were considered adherent and about 42% achieved LDL-cholesterol goal < 2.6 mmol/L. No association between adherence to statin therapy and LDL goal attainment was observed. Women had lower odds of being adherent to statin therapy (AOR=0.66, 95% CI: 0.49–0.87) compared to men. Further, young adults (18–44 years) had lower odds of being adherent to statin therapy (AOR=0.58, 95% CI: 0.32–0.97) compared to older adults (age>65 years).ConclusionThe findings of this study highlight the need to examine the impact of adherence to statins on healthcare services utilization due to different complications of uncontrolled dyslipidemia.
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