Adherence to lipid-lowering agents among 11,042 patients in clinical practice

M C S Wong1, J Y Jiang, S M Griffiths

  • 1Faculty of Medicine, School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong.

Insights

Adherence to lipid-lowering agents is high in Hong Kong, particularly among older patients and those with comorbidities. Younger patients and those without comorbidities require closer monitoring for medication adherence.

Area of Science:

  • Cardiology
  • Public Health
  • Pharmacoeconomics

Background:

  • Dyslipidemia management is often suboptimal due to poor patient adherence to medication.
  • Effective strategies to improve adherence are crucial for cardiovascular disease prevention.

Purpose of the Study:

  • To assess medication adherence rates to lipid-lowering agents in a large Chinese population.
  • To identify factors associated with optimal adherence to lipid-lowering medications.

Main Methods:

  • Utilized a validated clinical database of patients refilling prescriptions in Hong Kong public primary care clinics (Jan 2004 - June 2007).
  • Employed Medication Possession Ratio (MPR) to measure drug adherence, with MPR ≥ 0.8 defined as optimal.
  • Conducted multivariate regression analysis to determine factors associated with optimal adherence.

Main Results:

  • Out of 11,042 eligible patients, 90% demonstrated optimal adherence (MPR ≥ 0.8).
  • Older age (50+ years), attendance at family medicine specialist clinics, follow-up visits, and presence of comorbidities were significantly associated with higher adherence.
  • Adjusted odds ratios indicated increased likelihood of adherence with advancing age and number of comorbidities.

Conclusions:

  • Findings suggest that older patients and those with comorbidities are more likely to adhere to lipid-lowering medications.
  • Younger patients, new patients, and those without comorbidities may require targeted interventions and closer monitoring for medication adherence.
  • Further research is recommended to explore reasons for non-adherence in specific patient groups.
Abstract

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