This study investigated Emergency Department (ED) use by people incarcerated in jails. The authors found that frequent ED use was associated with more frequent jail bookings and with co-occurring serious mental illness and substance use disorder. By: Michele M Easter, Nicole L Schramm-Sapyta, Maria A Tackett, Isabella G Larsen, Becky Tang, Matthew A Ralph, Luong N Huynh — Journal of Correctional Health Care (2023).