• J Gen Intern Med · May 2021

    Review Meta Analysis

    The Impact of Social Determinants of Health on Medication Adherence: a Systematic Review and Meta-analysis.

    • Marcee E Wilder, Paige Kulie, Caroline Jensen, Paul Levett, Janice Blanchard, Luis W Dominguez, Maria Portela, Aneil Srivastava, Yixuan Li, and Melissa L McCarthy.
    • Department of Emergency Medicine, George Washington University, Medical Faculty Associates, Washington, DC, USA. M.wilder@mfa.gwu.edu.
    • J Gen Intern Med. 2021 May 1; 36 (5): 1359-1370.

    BackgroundMedication adherence (MA) is critical to successful chronic disease management. It is not clear how social determinants of health (SDH) impact MA. We conducted a systematic review and meta-analysis to summarize the evidence on the relationship between SDH and MA.MethodsWe conducted a systematic review of the literature using a Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) format. A literature search was performed using three databases: PubMed, Scopus, and Cochrane Clinical Trials Register in December of 2018. Included studies were completed in the USA, included adults aged 18 years and older, measured at least one social determinant of health, and medication adherence was the primary outcome measure. Data from included full texts were independently extracted using a standardized data extraction form. We then conducted a meta-analysis and pooled the odds ratios from the included studies for each social determinant as well as for all SDH factors collectively.ResultsA total of 3137 unduplicated abstracts were identified from our database searches. A total of 173 were selected for full text review after evaluating the abstract. A total of 29 articles were included for this systematic review. Economic-related SDH factors and MA were mostly commonly examined. The meta-analysis revealed a significant relationship between food insecurity (aOR = 0.56; 95% CI 0.42-0.7), housing instability (aOR = 0.64; 95% CI 0.44-0.93), and social determinants overall (aOR = 0.75; 95% CI 0.65-0.88) and medication adherence.DiscussionFood insecurity and housing instability most consistently impacted medication adherence. Although included studies were heterogenous and varied widely in SDH and MA measurements, adverse social determinants overall were significantly associated with lower MA. The relationship between SDH and MA warrants more attention and research by health care providers and policymakers.

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