Mini-Balance Evaluation Systems Test (Mini-BESTest) in Thai Version: Translation with Rater Reliability and Concurrent Validity in Older Adults
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Abstract
Background: The Mini-Balance Evaluation System Test (Mini-BESTest) is an accurate clinical balance scale for assessing fall risk in the elderly, but there is no Thai translation of the Mini-BESTest.
Objective: To translate the Mini-BESTest into Thai version and evaluate its intra-rater and inter-rater reliability and concurrent validity in the elderly.
Methods: The Mini-BESTest was translated using the forward-backward method. Reliability and validity were evaluated in 30 healthy older adults aged 60-80 years recruited from Ongkharak, Nakhon Nayok. Mini-BESTest was administered and video-recorded to all participants. Rater 1 and 2 scored balance performance using the recordings twice one week apart. Scores from both raters were used to determine inter-rater and intra-rater reliability using the intraclass correlation coefficient (ICC). The Berg Balance Scale (BBS) and the Timed Up and Go test (TUG) were also administered to determine the concurrent validity of the Mini-BESTest-Thai using the Pearson correlation coefficient.
Results: The Mini-BESTest-Thai showed excellent intra-rater reliability (ICC = 0.972 to 0.982) and inter-rater reliability (ICC = 0.941). This scale demonstrated moderate correlation with the BBS (r = 0.645, p < 0.001) and low correlation with the TUG (r = -0.497, p < 0.01). Bland Altman plots revealed that mean difference between assessment 1 and 2 was 0 to 0.1 points and between raters was 0.2 points.
Conclusion: The Mini-BESTest-Thai is a reliable and valid scale for evaluating balance in the elderly.
Article Details
References
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