Disparities in Receipt of Medications for Opioid Use Disorder Before and During the COVID-19 Pandemic in the US Veterans Health Administration.

Background: Populations disproportionately impacted by the opioid epidemic are less likely to receive medications for opioid use disorder (MOUD; OUD). The COVID-19 pandemic exacerbated these disparities. We performed an ecological survey of subpopulations to compare differences in MOUD receipt among Veterans with OUD before versus during the pandemic.

Methods: Using 2 cross-sections of 2 time periods of national Veterans Health Administration electronic health record data, we calculated proportions of Veterans with any MOUD receipt by demographics, Elixhauser comorbidity index, and natural language processing (NLP)-derived substance use and social determinants of health in each time period. We evaluated differences in MOUD receipt before and during the pandemic by patient characteristics using Chi-square and Cohen's for effect size.

Results: Among 62 195 patients with OUD before the pandemic, the proportion prescribed MOUD increased from 46.5% before to 47.5% ( = .0003) during the pandemic. Statistically significant increased receipt of MOUD was observed for patients who were ≥55 years, men, White, with Elixhauser comorbidity indices of 2 and ≥5, and with NLP-derived indicators of substance use. There was a decrease that did not achieve statistical significance in MOUD receipt from before to during the pandemic for patients who were women, Black, Latinx, and food insecure.

Conclusions: The proportions of patients with OUD prescribed MOUD increased from before to during the pandemic. However, Veterans who were women, Black, Latinx, and food insecure did not experience these increases. These patients may benefit from interventions such as targeted outreach efforts to improve MOUD engagement to reduce OUD harms.