A recent Australian study compared the St Thomas’s Risk Assessment Tool in Falling Elderly Inpatients (STRATIFY) and two modifications (Ontario Modified, OM; Northern Hospital Modified, TNH) in 217 inpatients. The prospective study found similar sensitivity between the three tools: STRATIFY, 80.0 (95% CI, 58.4 to 91.0%), OM, 80.0 (95% CI, 58.4 to 91.9%), and TNH, 85 (95% CI, 64.0 to 94.8%). However, STRATIFY had greater specificity than either OM or TNH modification, 61.4, 37.1, and 51.3, respectively. STRATIFY also had a significantly higher accuracy than the other two tools (63.1, 95% CI 56.5 to 69.3%; OM, 41.0, 95% CI 34.7 to 47.7%; TNH, 54.4, 95% CI 47.8 to 61.0%; P<0.0001).
Given the relatively low specificity and accuracy of the tools, the authors concluded that these tools have limited accuracy in identifying elderly inpatients at risk of falling.
Latt MD, Loh KF, Hepworth A. The validity of three fall risk screening tools in an acute geriatric population. Australas J Ageing. 2016. Doi: 10.1111/ajag.12256.