Original ArticlesPatient-, Hospital-, and System-Level Factors Associated With 30-Day Readmission After a Psychiatric HospitalizationMascayano, Franco PhD∗,†; Haselden, Morgan BA†; Corbeil, Tom MPH†; Wall, Melanie M. PhD†; Tang, Fei MPH‡; Essock, Susan M. PhD†; Frimpong, Eric PhD‡; Goldman, Matthew L. MD, MS§; Radigan, Marleen DrPH‡; Schneider, Matthew MD∥; Wang, Rui MS‡; Dixon, Lisa B. MD, MPH∗,†; Olfson, Mark MD, MPH∗; Smith, Thomas E. MD∗,† Author Information ∗Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University †New York State Psychiatric Institute, New York ‡Office of Performance Measurement and Evaluation, New York State Office of Mental Health, Albany, New York §Department of Psychiatry and Behavioral Sciences, University of California-San Francisco, San Francisco, California ∥Department of Psychiatry and Behavioral Sciences, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, New York. Send reprint requests to Thomas E. Smith, MD, New York State Psychiatric Institute, 1051 Riverside Drive, New York, NY 10032. E-mail: [email protected]. The Journal of Nervous and Mental Disease 210(10):p 741-746, October 2022. | DOI: 10.1097/NMD.0000000000001529 Buy Metrics Abstract Readmission after inpatient care for a psychiatric condition is associated with a range of adverse events including suicide and all-cause mortality. This study estimated 30-day readmission rates in a large cohort of inpatient psychiatric admissions in New York State and examined how these rates varied by patient, hospital, and service system characteristics. Data were obtained from Medicaid claims records, and clinician, hospital, and region data, for individuals with a diagnosis of any mental disorder admitted to psychiatric inpatient units in New York State from 2012 to 2013. Psychiatric readmission was defined as any unplanned inpatient stay with a mental health diagnosis with an admission date within 30 days of being discharged. Unadjusted and adjusted odds ratios of being readmitted within 30 days were estimated using logistic regression analyses. Over 15% of individuals discharged from inpatient units between 2012 and 2013 were readmitted within 30 days. Patients who were readmitted were more likely to be homeless, have a schizoaffective disorder or schizophrenia, and have medical comorbidity. Readmission rates varied in this cohort mainly because of individual-level characteristics. Homeless patients were at the highest risk of being readmitted after discharge. Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.