Association Between Online Reviews of Substance Use Disorder Treatment Facilities and Drug-Induced Mortality Rates: Cross-Sectional Analysis

Matthew P Abrams   ^{1, 2, 3} , MD ;   Raina M Merchant   ^{1, 2, 4} , MD, MSc ;   Zachary F Meisel   ^{2, 4, 5} , MD, MPH, MSc ;   Arthur P Pelullo   ¹ , MS, MA ;   Sharath Chandra Guntuku   ^{1, 4, 6} , PhD ;   Anish K Agarwal   ^{1, 2, 4} , MD, MPH, MS

¹ Center for Digital Health, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States

² Center for Emergency Care Policy and Research, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States

³ Department of Psychiatry, University of California San Diego, San Diego, CA, United States

⁴ Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA, United States

⁵ Penn Injury Science Center, University of Pennsylvania, Philadelphia, PA, United States

⁶ Department of Computer and Information Science, University of Pennsylvania, Philadelphia, PA, United States