Community treatment orders (CTOs) have been introduced in many jurisdictions with evidence of increasing use over time as well as a disproportionate use in marginalised populations. Rates of CTOs also vary widely, both internationally and within the same country, for reasons that are poorly understood. This is despite evidence for effectiveness being mixed and, as a result, there have been calls for a reappraisal of this type of legislation. In the UK, a parliamentary committee on reforming the existing Mental Health Act recommended abolishing CTOs other than for people in the criminal justice system. Two recent Australian papers based on large state-wide administrative data-sets give conflicting results and came to markedly different conclusions regarding the desirability of reducing CTO rates. The debate about the effectiveness of CTOs therefore remains unresolved. This is of concern beyond Australia, as other jurisdictions such as England, Scotland and Canada have similar clinician-initiated orders.

This study sought to develop frailty “identification rules” using population-based health administrative data that can be readily applied across jurisdictions for living and deceased persons. Three frailty identification rules were developed based on accepted definitions of frailty, markers of service utilization, and expert consultation, and were limited to variables within two common population-based administrative health databases: hospital discharge abstracts and physician claims data. These rules were used to identify persons with frailty from both decedent and living populations across five Canadian provinces. Participants included persons who had died and were aged 66 years or older at the time of death (British Columbia, Alberta, Ontario, Quebec, and Nova Scotia) and living persons 65 years or older (British Columbia, Alberta, Ontario, and Quebec). Descriptive statistics were computed for persons identified using each rule. The proportion of persons identified as frail ranged from 58.2-78.1 per cent (decedents) and 5.1-14.7 per cent (living persons).