EXHIT ENTRE Implementation Trial of High Intensity Versus Low Intensity Strategy

The study will randomize approximately 24 community hospitals meeting defined eligibility requirements, including a desire to address OUD among inpatients through the use of MOUD. Community hospitals will be randomized 1:1 to implement a low- or high-intensity strategy. Hospitals will be randomized with intervention implementation and oversight assigned to one of 3-4 geographically diverse hub academic medical centers with existing clinical and research expertise in HBOT. The randomization will be stratified by site/hub. Participants will be assessed for "engagement with MOUD", measured as the proportion of community hospital OUD discharges engaged with MOUD within 34 days following hospital discharge during months 13-24 of the intervention. Further outcomes will be assessed during the entire 4-year study period.