Viral Suppression Trajectories Destabilized after Covid-19 among Us People with Hiv

ABSTRACT

Background: Disruptions in clinical services during the COVID-19 pandemic could compromise past progress towards meeting U.S. Ending the HIV Epidemic (EHE) goals. We examined changes in the proportion with virologic suppression (VS) before and since the onset of COVID-19 in a multi-site U.S. cohort of people with HIV (PWH) using an interrupted time series design. Method(s) We assessed VS (< 200 copies/mL) trajectories 1/1/2018-1/1/2022, comparing trends before and after March 21, 2020 at 8 HIV clinics within the U.S. Center for AIDS Research Network of Integrated Clinical Systems (CNICS'). Hierarchical mixed-effects logistic regression and interrupted time series analyses examined changes in the trend (i.e., slope) of VS over time, and maximum likelihood estimation was used to account for missing VS data among those lost to follow-up (LTFU) post-COVID-19. Analyses were adjusted for demographics, site, CDC transmission group, CD4 nadir, VS, time on ART. Result(s) Data from 17,999 participants were included, providing a total of 120,918 VS assessments. Median age was 53 (interquartile range 42-61);19% were female sex at birth;the mean time on ART was 9.5 years;18% were unsuppressed at any point;17.7% were LTFU. Among the overall population, prior gains in VS slowed during COVID-19 (adjusted odds ratio [AOR] 0.93 per quarter-year;95% CI 0.88-0.98;p=0.004;Figure). Greater impacts occurred among women (AOR 0.90;95% CI 0.81-0.99;p=0.05), persons with a history of injection drug use (PWID) (AOR 0.77 95% CI 0.66-0.90;p=0.001), and Black PWH (AOR 0.90;95% CI 0.84-0.96;p=0.001) in whom prior positive VS trends plateaued or began to reverse (Figure). VS remained lower among those with unstable housing (AOR 0.44;95% CI 0.40-0.50;p< 0.001) but stayed unchanged from the pre-pandemic period. Conclusion(s) Previous gains in VS slowed during the COVID-19 pandemic among PWH in a multi-site network of U.S. HIV clinics. Known disparities in VS according to housing status remain unchanged, but VS disparities worsened for PWH who were women, PWID, or Black. Changes in VS trends could be related to socioeconomic impacts of the pandemic, insurance lapses, reduction of in-person clinic services, fear of coming to clinics, or other factors. Renewed investment in HIV public health and clinical services will be vital to achieve the U.S. EHE goals following COVID-19, with additional targeted interventions to support key populations with persistent or worsening disparities needed.