351. HIV and Aging: Multimorbidity in Older People Living with HIV in One Southeastern HIV Clinic

BACKGROUND: While morbidity and mortality related to HIV are decreasing, age-related chronic conditions are becoming more common in people living with HIV (PLWH). We hypothesized that multimorbidity prevalence among PLWH would increase from 2006 to 2016 and that multimorbidity would be associated with demographic and healthcare system-level factors. METHODS: Cohorts included PLWH aged 45–89 who received care at the University of Virginia (UVA) Ryan White HIV clinic in 2006 (Cohort 1) and 2016 (Cohort 2). Multimorbidity was defined as the co-occurrence of ≥2 age-related chronic diseases. Demographics, HIV-specific clinical characteristics and multimorbidity were compared between the cohorts using a generalized linear model fit using a generalized estimating equation that accounted for repeated measures. Within each cohort, multivariable binary logistic regression was used to assess the association between participants’ characteristics and multimorbidity. RESULTS: Cohort 1 had 198 participants, and Cohort 2 had 378 participants. Cohort 1 represented 33% of the 2006 clinic population, and Cohort 2 represented 54% of the 2016 clinic population. Less Cohort 2 participants were uninsured (5% vs. 22%, P < 0.001) and more had private insurance (44% vs. 26%, P < 0.001). The prevalence of multimorbidity was higher in Cohort 2 (28% vs 21%, P < 0.001). For Cohort 1, multimorbidity was less likely for those with private insurance (8%, adjusted Odds Ratio [aOR] 0.81, 95% Confidence Interval [CI] 0.69–0.90) compared with those with Medicare (32%). For Cohort 2, multimorbidity was more likely for those with incomes < 100% Federal Poverty Level (FPL; 34%) compared with those with incomes 101–250% FPL (27%, aOR 0.86, 95% CI 0.74–1.00) and 251–500% FPL (21%, aOR 0.78, 95% CI 0.64–0.95). For Cohort 2, multimorbidity was associated with female sex (40%, aOR 1.21, 95% CI 1.01–1.45) compared with male sex (24%). CONCLUSION: Older PLWH represented an increasing proportion of the studied Southeastern clinic population. Multimorbidity prevalence was higher in 2016 compared with 2006. Insurance status was associated with multimorbidity for Cohort 1. For Cohort 2, incomes < 100% FPL and female sex were associated with increased likelihood of multimorbidity. Future research will need to assess the reasons for these disparities. DISCLOSURES: All authors: No reported disclosures.