Case control study of access to medications during COVID-19 and longitudinal impact on health outcomes for primary care patients managing multiple chronic conditions.

Background: During coronavirus disease 2019 (COVID-19), people managing multiple chronic conditions (MCCs) experienced barriers to obtaining needed medications. The purposes of this paper are to (i) determine risk factors for difficulty obtaining medications during COVID-19, (ii) document reasons for the difficulty, and (iii) evaluate the impact on later physical and mental health outcomes.

Method: In a randomized controlled trial conducted in 2016-2021, 1969 adult primary care patients were surveyed about physical and mental health both before and during COVID-19. They reported their needs for medication during COVID-19 and any difficulty obtaining them. Reasons for difficulty accessing medications were tabulated descriptively. Logistic regression identified predictors of medication access difficulty. Multivariable linear regression modeled the relationship between access to medications and health outcomes, accounting for pre-COVID health.

Results: In total 13% of participants experienced difficulty accessing needed medications. Compared to the larger sample, those participants were younger, had more MCCs, and had lower income. They were more often female, unmarried, and were facing insecurities in housing, food, or finances (all P < 0.004). Younger age and the presence of socioeconomic insecurity at baseline increased the odds of later difficulty accessing medications. Barriers to access included concerns about contracting COVID-19 (52%), physician or pharmacy inaccessibility (38%), and cost (26%). Adjusting for baseline health, difficulty accessing medications was associated with poorer health at follow up (P = 0.001).

Conclusion: People with socioeconomic disadvantages experienced a disproportionate impact of difficulty obtaining medications and poorer health outcomes due to COVID-19. They may be at greater risk in the event of future pandemics and other societal disruptions.