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OBJECTIVE: Because of limited access to psychiatrists, patients with acute mental illness in some emergency departments (EDs) may wait days for a consultation in the ED or as a medical-surgical admission. The study assessed whether telepsychiatry improves access to care and decreases ED wait times and hospital admissions. METHODS: ED visits with a primary diagnosis of mental illness were identified from 2010-2018 Medicare claims. A total of 134 EDs across 22 states that implemented telepsychiatry between 2013 and 2016 were matched 1: 1 with control EDs without telepsychiatry on several characteristics, including availability of in-person psychiatrist consultations. Outcomes included patients' likelihood of admission to a medical-surgical or psychiatric bed, mental illness spending, prolonged ED length of stay (LOS) (two or more midnights in the ED), 90-day mortality, and outpatient follow-up care. Using a difference-in-difference design, changes in outcomes between the 3 years before telepsychiatry adoption and the 2 years after were examined. RESULTS: There were 172, 708 ED mental illness visits across the 134 matched ED pairs in the study period. Telepsychiatry adoption was associated with increased admissions to a psychiatric bed (differential increase, 4. 3 percentage points; p<0. 001), decreased admissions to a medical-surgical bed (differential decrease, 2. 0 percentage points; p<0. 001), increased likelihood of a prolonged ED LOS (differential increase, 3. 0 percentage points; p<0. 001), and increased mental illness spending (differential increase, 292; p<0. 01). CONCLUSIONS: Telepsychiatry adoption was associated with a lower likelihood of admission to a medical-surgical bed but an increased likelihood of admission to a psychiatric bed and a prolonged ED LOS.
Patel et al. (Thu,) studied this question.