Prevalence and global trends of polypharmacy among people living with HIV: A systematic review and meta-analysis

Background: There has been a rising prevalence of polypharmacy among people living with HIV (PLWH). Uncertainty however remains regarding the exact estimates of polypharmacy among these cohorts of patients.

Methods: We conducted a systematic search of PubMed; EMBASE, CROI, Cochrane Database of Systematic Reviews; Science Citation Index and Database of Abstracts of Reviews of Effects for studies between 1 January 2000 and 30 June 2021 that reported on the prevalence of polypharmacy (ingestion of > 5 non-ART medications) among PLWH on antiretroviral therapy regimen (ART). Prevalence of polypharmacy among HIV-positive patients on ART with Clopper-Pearson 95% confidence intervals were presented. The heterogeneity between studies was evaluated using I² and τ² statistics.

Results: One hundred ninety-seven studies were initially identified, 23 met the inclusion criteria enrolling 55,988 PLWH, of which 76.7% [95% confidence interval (CI): 76.4-77.1] were male. The overall pooled prevalence of polypharmacy among PLWH was 33% (95% CI: 25-42%) (I ² = 100%, τ² = 0.9170, p < 0.0001). Prevalence of polypharmacy is higher in the Americas (44%, 95% CI: 27-63%) (I ² = 100%, τ² = 1.0886, p < 0.01) than Europe (29%, 95% CI: 20-40%) (I ² = 100%, τ² = 0.7944, p < 0.01).

Conclusion: The pooled prevalence estimates from this synthesis established that polypharmacy is a significant and rising problem among PLWH. The exact interventions that are likely to significantly mitigate its effect remain uncertain and will need exploration by future prospective and systematic studies.

• Epidemiology and Determinants of Health
  • Epidemiology
• Population(s)
  • General HIV+ population
• Prevention, Engagement and Care Cascade
  • Engagement and Care Cascade
• Engagement and Care Cascade
  • Treatment