Only a quarter of international hospital-at-home admission-avoidance models use validated frailty measures, scoping review finds

A scoping review of 28 papers describing 15 international Hospital-at-Home admission-avoidance models found that only 4 of the 15 used a validated frailty measure, and that communication and coordination practice between healthcare professionals, patients and caregivers varied widely across models Synthesis (Arndt et al.1, PMID: 42637995).

The review does not evaluate clinical outcomes directly; its contribution is a measurement-discipline and design check against which an admission-avoidance Hospital-at-Home model can be assessed before or during scale-up. The finding is that most existing models were not built around validated frailty assessment in the first place, which limits how confidently their outcomes can be compared with one another — not that any single international standard has emerged for others to replicate.

For any service specifying or expanding an admission-avoidance Hospital-at-Home offer, this is a reminder that scaling depends on measurement discipline as much as on service design.