Immunosuppressive Medications and COVID-19 Outcomes in Patients with Noninfectious Uveitis in the Era of COVID-19 Vaccinations

Abstract

To determine the risk of coronavirus disease 2019 (COVID-19) infection, hospitalization, and death in the era of COVID-19 vaccination among patients with noninfectious uveitis (NIU) taking immunosuppressive therapies. Retrospective cohort study from July 1, 2021, to June 30, 2022, using data from the Optum Labs Data Warehouse (OLDW) de-identified claims database. Patients with a diagnosis of NIU from January 1, 2017, and who had ≥ 1year of continuous enrollment in the OLDW. Incidence rates (IRs) were calculated for each COVID-19 outcome. Unadjusted and adjusted hazard ratios (HRs) were estimated for each variable and COVID-19 outcome using Cox proportional hazards models with time-updated dichotomous indicators for outpatient immunosuppressive medication exposure. To assess the dose-dependent effect of systemic corticosteroid (SC) exposure, the average daily dose of prednisone over the exposed interval was included in the adjusted models. Hazard ratios and IRs for COVID-19 infection, hospitalization, and death. This study included 62 209 patients with NIU. A total of 12 895 (20.7%) were exposed to SCs during the risk period. Incidence rates were increased when exposed to SCs versus unexposed for all COVID-19 outcomes. Incidence rates were also increased for all COVID-19 outcomes when exposed to SCs without COVID-19 vaccination versus exposed to SCs with ≥ 1 vaccination. In adjusted models, SCs were associated with increased risk of COVID-19 infection (HR, 3.57; 95% confidence interval [CI], 3.24-3.93; P<0.0001), hospitalization (HR, 2.75; 95% CI, 2.07-3.65; P<0.0001), and death (HR, 2.49; 95% CI 1.29-4.82; P= 0.007). Incremental increases in SC dose were associated with a greater risk for all outcomes. Disease-modifying anti-rheumatic drugs were associated with a decreased risk of infection (HR, 0.84; 95% CI, 0.74-0.96; P= 0.01), and tumor necrosis factor-α inhibitors were associated with an increased risk of infection (HR, 1.18; 95% CI, 1.01-1.39; P= 0.04). Systemic corticosteroid exposure continues to be associated with greater risk of COVID-19 infection, hospitalization, and death among patients with NIU in an era of widespread COVID-19 vaccination. Unvaccinated individuals who are exposed to immunosuppressive treatments have a greater risk of severe outcomes. Coronavirus disease 2019 vaccination should be strongly encouraged in these patients. Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.