A psychometric analysis of the short-form Extended Barthel Index
10.3760/cma.j.cn421666-20240914-00749
- VernacularTitle:简短版扩展Barthel指数量表的编制及心理计量学分析
- Author:
Jiajia SHI
1
;
Yue SUN
1
;
Ying SUN
1
;
Ting XU
1
;
Chunyi QIAN
1
Author Information
1. 昆山市康复医院，苏州 215300
- Publication Type:Journal Article
- Keywords:
Extended Barthel index;
Activities of daily living;
Reliability;
Validity;
Stroke;
Brain trauma
- From:
Chinese Journal of Physical Medicine and Rehabilitation
2025;47(3):198-203
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the psychometric properties of the short-form Extended Barthel Index (EBI) in assessing ability in the activities of daily living (ADL).Methods:Data describing 295 discharged patients with stroke or traumatic brain injury were collected retrospectively, including their demographics, diagnoses, and functional assessments (EBI, FIM, MBI and MoCA). Then, data on 120 of them were used to construct short-form EBI models based on item-total advantage indices, while the remaining 175 patients served as a validation set to evaluate the acceptability, responsiveness, reliability, validity, and outcome consistency of the models. The optimal model was selected as the recommended short-form EBI.Results:The short-form EBI comprises seven items: personal hygiene, dressing/undressing, wheelchair-bed transfer, walking, social interaction during walking, problem-solving, and memory/learning/orientation, with each item scored 0-4 (total range: 0-28). The short-form EBI demonstrated good acceptability, with median and mean scores near the scale′s midpoint and no significant ceiling or floor effects. Its responsiveness (d=0.19) surpassed that of the original EBI (d=0.14). Moreover, the short-form EBI showed excellent reliability (Cronbach′s α=0.885; SEM=9.11) and validity, explaining 95.4% of the variance in EBI scores (adj. R 2=0.954). Concurrent validity with the EBI was strong (ρ=0.975, P≤0.001), and criterion validity with ρ=0.956 for FIM, 0.889 for MBI, and 0.806 for MoCA. The short-form and the original EBI exhibited good agreement [ICC=0.967 (95% CI: 0.769-0.989); score difference: 6.48±6.56]. Conclusions:The short-form EBI demonstrates excellent acceptability, responsiveness, reliability, validity, and outcome consistency, making it a practical tool for ADL assessment in cases of stroke or traumatic brain injury.
