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Development and validation of the balance outcome measure for elder rehabilitation
Terry Haines1, Suzanne S Kuys, Greg Morrison
1Division of Physiotherapy, School of Health and Rehabilitation Sciences, University of Queensland, Brisbane, Australia. Terrence_Haines@health.qld.gov.au
Objective:
To develop and investigate the internal consistency, criterion-related validation, and minimum clinically significant difference of a new standing balance outcome measure for Elder Rehabilitation.
Design:
Three phases: (1) cross-sectional survey with expert panel, (2) multicenter prospective cohort randomly divided into development and validation datasets, and (3) prospective cohort (single site).
Setting:
Geriatric and rehabilitation units across 2 states in Australia.
Participants:
A total of 1769 admissions across 17 geriatric assessment and rehabilitation units.
Interventions:
Not applicable.
Main Outcome Measures:
The Balance Outcome Measure for Elder Rehabilitation (BOOMER) consisted of the step test, Timed Up & Go test, Functional Reach Test, and static standing with feet together and eyes closed test. Criterion-related validity was established through comparison to the Modified Elderly Mobility Scale (MEMS) and the FIM motor score.
Results:
Items of the BOOMER were already used at a majority of rehabilitation facilities surveyed. The BOOMER showed high levels of internal consistency (Cronbach alpha>.87) and had good correlation with the FIM motor and the MEMS (rho>.72). The minimum clinically significant change in the BOOMER was 3 points over a 17-point scale range.
Conclusions:
The BOOMER is a clinically applicable measure of standing balance among older rehabilitation patients with evidence of content and construct validity.