• Tiffany M Abramson, Stephen Sanko, and Marc Eckstein.
• Prehosp Emerg Care. 2021 May 1; 25 (3): 333-340.

BackgroundHomelessness is a rapidly growing issue throughout the United States and has important public health implications. Los Angeles, like other large urban cities, has seen a recent increase in homelessness. However, little is known about emergency medical service (EMS) utilization by those experiencing homelessness. Objective: Describe the utilization of emergency medical services by homeless patients. Methods: This is a 12-month retrospective review of electronic health records of all 911-incidents attended by the Los Angeles Fire Department (LAFD) from January to December 2018. The City of Los Angeles is 480 square miles and has a population of 3,949,776 with a homeless population of 31,285 (0.8% of city population). The primary outcome is the frequency of EMS 911-calls for homeless patients. Secondary outcomes include call characteristics. Results: There were 355,411 911-incidents during the study period. Homeless patients were involved in 36,122 (10.2%) incidents. Incidents for the homeless population occurred at a rate of 1155 per 1000 homeless residents or 14 times the rate of housed residents. Of the 217,972 calls resulting in transport to the emergency department, 28,917 (13.3%) were for homeless patients. This translates into a rate of 924 per 1000 homeless patients, which is 19 times higher than housed patients. Homeless patients were younger (mean 46.1 v 52.6 years) and more likely to be male (71% v 49.1%). Acuity was lower in the homeless group, 31.4% v 42.5% received advanced life support. Conclusion: In the City of Los Angeles, people experiencing homelessness demonstrated disproportionately high use of EMS services and ambulance transports, were more frequently younger, male, and had lower acuity conditions when compared with housed patients.

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