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KMID : 0388320120190040444
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Journal of Korean Academy of Fundamental Nursing
2012 Volume.19 No. 4 p.444 ~ p.452
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Predictive Effects of Previous Fall History on Accuracy of Fall Risk Assessment Tool in Acute Care Settings
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Park Ihn-Sook
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Abstract
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Purpose: To explore the usefulness of previous fall history as a triage variable for inpatients.
Methods: Medical records of 21,382 patients, admitted to medical units of one tertiary hospital, were analyzed retrospectively. Inpatient falls were identified from the hospital"s self-report system. Non-falls in 1,125 patients were selected by a stratified matching sampling with 125 patients with falls (0.59%). A comparative and predictive accuracy analysis was conducted to describe differences between the two groups with and without a history of falls. Logistic regression was used to measure the effect size of the fall history.
Results: The fall history group showed higher prevalence by 9 fold than the non-fall history group. The relationships between falls and relevant variables which were significant in the non-fall history group, were not significant for the fall history group. Falls in the fall history group were 25 times more likely than in the non-fall group. Predictive accuracy of the risk assessment tool showed almost zero specificity in the fall history group.
Conclusion: The presence of fall history, the fall prevalence, variables relevant to falls, and the accuracy of the risk tool were different, which support the usefulness of the fall history as a triage variable.
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KEYWORD
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Accidental falls, Risk assessment, History, Predictive value of tests, Sensitivity and specificity
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