A hybrid type 1 trial of a digital behaviour change intervention for frailty prevention in community-dwelling older adults aged 60 years and older
In community-dwelling adults aged 60+, a digital coaching program lowered frailty risk and slightly improved quality of life over 6 months versus usual care.
*Randomized controlled trial with wait-list control; Level 1b (OCEBM).
Citation
Dollard J, Jadczak AD, Halkett I, et al. A hybrid type 1 trial of a digital behaviour change intervention for frailty prevention in community-dwelling older adults aged 60 years and older. Age and Ageing. 2026;55:afag120. doi:10.1093/ageing/afag120.
Background
Frailty (gradual loss of health reserves) increases with age and is linked to falls, hospitalisation, and reduced independence. This trial tested whether a digital program encouraging multiple healthy habits could prevent worsening frailty in older adults living at home.
Patients
60 community-dwelling adults aged 60+ from one South Australian local council who were not frail at baseline. Excluded: already frail, limited English, no regular internet/computer access (or helper), prior involvement in program adaptation, more than one household member enrolled.
Intervention
Digital behaviour change program promoting activity, vaccination, medication review, social connection, and nutrition, plus newsletters and optional in-person expert talks.
Control
Usual care with wait-list access to limited program content after 6 months.
Outcome
Frailty index (0–1; lower is better) (primary). Quality of life via a standard questionnaire scored using Australian values (secondary).
Follow-up Period
6 months.
Results
| Outcome | Between-group difference in change (95% confidence interval) |
|---|---|
| Frailty index (primary) | −0.044 (−0.076 to −0.012) |
| Quality of life score | +0.032 (+0.016 to +0.058) |
Outcome assessors were blinded; participants were not. The program was widely adopted and generally rated usable; no program-related harms were reported.
Limitations
Small trial from a single council with mostly well-educated, English-speaking participants with internet access, limiting generalisability. Some participants withdrew from the intervention group. The quality-of-life improvement may be modest for some patients, and cost-effectiveness was not assessed.
Funding
The Hospital Research Foundation (grant 2023-CP-IAW-012).
Clinical Application
Consider offering a supported digital healthy-habits program to non-frail older adults; expect lower frailty risk over 6 months, but plan help for technology barriers.
Discussion
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In this single-blind wait-list RCT (n=60) of the AVOID digital behaviour change intervention, the frailty index improved vs control (mean change −0.044, 95% CI −0.076 to −0.012) at 6 months—what threats to validity (e.g., protocol deviation, attention/contamination) and generalizability would you weigh before recommending it in your community clinic?