Quantifying the economic benefit of the personal alarm and emergency response system in Australia: a cost analysis of the reduction in ambulance attendances.

Objectives. MePACS is a triage and support-based personal alarm emergency response system designed to assist older and/or disabled people to live safely in their homes. The aim of this study was to estimate avoidable ambulance attendances and transports to emergency departments and quantify the cost savings attributed to MePACS compared with a comparison cohort without a personal alarm system. Methods. Alarm activation and demographic data for clients registered in the program from June 2016 to May 2017 and funded through the Personal Alert Victoria program were extracted from routinely collected MePACS electronic data. Information on alarm use, event outcomes and ambulance attendances was extracted. Using published Ambulance Victoria data, a comparison cohort was simulated to model the experience of a similar cohort without access to a personal alarm system who experienced a health emergency and called Australia's emergency call service number. The incremental management cost, incorporating the operation cost of MePACS and ambulance fees, was calculated to compare the potential cost savings of MePACS with the comparison cohort. Results. Among 18 421 eligible clients, there were 7856 emergency alarm activations due to falls or medical events from 4275 clients (79.5% female; 81.1% aged .75 years; 91.8% living alone). MePACS resulted in approximately onethird of ambulance attendances being avoided. Potential annual cost savings of A$1 414 732.8 (A$76.8 per person per year; 95% confidence interval A$60.0-93.6 per person per year; P, 0.001) were attributed to avoidable ambulance utilisations for 18 421 MePACS clients. Conclusion. Triage-based personal alarm systems, such as MePACS, provide a cost-saving strategy because of fewer ambulance attendances and transports to emergency departments for older and/or disabled people living in the community. [ABSTRACT FROM AUTHOR]