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Validation of the 15-item Brief Inventory of Swallowing Ability (BISA-15) for Older Adults Based on a Rasch Analysis

Other Titles
 라쉬분석에 기반한 노년층 15문항 삼킴기능 간단평가(BISA-15)의 타당성 검증 
Authors
 HyangHee Kim  ;  Ga-Young Kim 
Citation
 Communication Sciences & Disorders, Vol.25(2) : 489-498, 2020-06 
Journal Title
 Communication Sciences & Disorders 
ISSN
 2288-1328 
Issue Date
2020-06
Keywords
Self-report ; Swallowing ; Mastication ; Aged ; Rasch analysis ; Older adults ; BISA-15
Abstract
Objectives Aging-related changes in swallowing functions have rapidly become prevalent among the elderly. Self-reported questionnaires are often conducted to observe how people perceive their swallowing functions, and to report the swallowing-associated quality-of-life. This study was conducted to demonstrate the use of Rasch analysis for validating the pre-developed self-reported questionnaire to assess swallowing functions for community-dwelling older adults. Methods A total of 479 older adults (men=238, mean age±SD=75.6±7.17 years) were enrolled. Twenty-six items with respect to swallowing functions were completed by the participants. Each item investigated symptom frequency or severity on a 5-point Likert scale. A Rasch analysis using the WINSTEP® program was undertaken to establish validity and reliability of the questionnaire. Results From the item fit statistics analysis, 11 out of 26 items were shown to be misfits to the model. Thus, the 15-item Brief Inventory of Swallowing Ability (BISA-15) was derived and demonstrated a unidimensional scale based on the dimensionality and item fit statistics. The overall item reliability was excellent. The person reliability was lower than the required threshold. The rating scales needed to collapse into three categories both in frequency and severity (i.e., never, sometimes/moderate, often/severe). Conclusion The BISA-15 can be utilized to detect degree of aberrations in swallowing that transit from normal to subclinical stage in older adults. Future studies are warranted to further clarify the utility of the BISA-15 in a wide range of age in the elderly as well as in the various clinical populations.
Files in This Item:
T202002869.pdf Download
DOI
10.12963/csd.20702
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Rehabilitation Medicine (재활의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hyang Hee(김향희) ORCID logo https://orcid.org/0000-0003-4949-2512
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/179326
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