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Development of the Sydney Falls Risk Screening Tool in brain injury rehabilitation: A multisite prospective cohort
Duncan McKechnie1, Murray J Fisher2, Julie Pryor2
1Sydney Nursing School, The University of Sydney, Brain Injury Unit, Royal Rehab, Sydney, NSW, Australia.
Aims And Objectives:
To develop a falls risk screening tool (FRST) sensitive to the traumatic brain injury rehabilitation population.
Background:
Falls are the most frequently recorded patient safety incident within the hospital context. The inpatient traumatic brain injury rehabilitation population is one particular population that has been identified as at high risk of falls. However, no FRST has been developed for this patient population. Consequently in the traumatic brain injury rehabilitation population, there is the real possibility that nurses are using falls risk screening tools that have a poor clinical utility.
Design:
Multisite prospective cohort study.
Methods:
Univariate and multiple logistic regression modelling techniques (backward elimination, elastic net and hierarchical) were used to examine each variable's association with patients who fell. The resulting FRST's clinical validity was examined.
Results:
Of the 140 patients in the study, 41 (29%) fell. Through multiple logistic regression modelling, 11 variables were identified as predictors for falls. Using hierarchical logistic regression, five of these were identified for inclusion in the resulting falls risk screening tool: prescribed mobility aid (such as, wheelchair or frame), a fall since admission to hospital, impulsive behaviour, impaired orientation and bladder and/or bowel incontinence. The resulting FRST has good clinical validity (sensitivity = 0.9; specificity = 0.62; area under the curve = 0.87; Youden index = 0.54). The tool was significantly more accurate (p = .037 on DeLong test) in discriminating fallers from nonfallers than the Ontario Modified STRATIFY FRST.
Conclusion:
A FRST has been developed using a comprehensive statistical framework, and evidence has been provided of this tool's clinical validity.
Relevance To Clinical Practice:
The developed tool, the Sydney Falls Risk Screening Tool, should be considered for use in brain injury rehabilitation populations.
