Résumé
The aim of this study was to evaluate the effectiveness of a psychoeducational intervention, Powerful Tools for Caregivers (PTC), for family caregivers of individuals with dementia.
A pragmatic, 2-arm randomized controlled trial compared the PTC intervention, as delivered in practice, to usual care. Participants randomized to usual care functioned as a control group and then received the PTC intervention.
PTC is a 6-week manualized program that includes weekly 2-hour classes in a group setting facilitated by 2 trained and certified leaders. The educational program helps caregivers to enhance self-care practices and manage emotional distress.
Two stakeholder organizations delivered the intervention in community settings. Participants were family caregivers of individuals with dementia recruited from the community in Florida.
Primary outcomes were caregiver burden and behavioral and psychological symptoms of dementia of the care recipient. Secondary outcomes included caregiver depressive symptoms, self-efficacy, self-rated health, and life satisfaction. Measures were collected at baseline (n = 60 participants), postintervention (n = 55), and at 6-week follow-up (n = 44).
Intent-to-treat analyses found PTC reduced caregiver burden (d = −0.48) and depressive symptoms (d = −0.53), and increased self-confidence (d = 0.68), but found no significant benefit for behavioral and psychological symptoms of dementia in care recipients. PTC was rated highly by participants and program attrition was low, with 94% of caregivers completing at least 4 of the 6 classes.
Although no significant effects were found for behavioral and psychological symptoms of dementia, this trial supports the effectiveness of PTC to improve caregiver outcomes as delivered in the community.