The SSA and GUSS scales deliver equally good reliability and validity in evaluating dysphagia among stroke survivors
10.3760/cma.j.issn.0254-1424.2024.01.005
- VernacularTitle:SSA量表与GUSS量表在急性脑卒中吞咽障碍评估中的信度和效度对比
- Author:
Sijing PAN
1
;
Zhangbao GUO
;
Wei SHAO
;
Binjian LIU
;
Chun SUN
Author Information
1. 武汉市第一医院神经内科，武汉 430000
- Keywords:
Dysphagia;
Swallowing Function Assessment Scale;
GUSS Swallowing Function Assessment Screen;
Reliability;
Validity;
Stroke
- From:
Chinese Journal of Physical Medicine and Rehabilitation
2024;46(1):23-27
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To compare the reliability and validity of the Standard Swallowing Function Assessment Scale (SSA) with those of the GUSS Swallowing Function Assessment Screen (GUSS) in screening for and evaluating dysphagia among stroke survivors.Methods:Forty-seven stroke survivors had their swallowing function evaluated using the GUSS scale and the SSA scale. The results were compared with those of endoscopic swallowing function examinations.Results:Both scales delivered good reliability and validity. The SSA scale′s test-retest reliability had an ICC value=0.828 and an inter-evaluator reliability with an ICC value=0.909. Those were better than the GUSS scale′s values, but the latter had better intrinsic reliability (Cronbach′s α=0.939). Both scales showed good structural and calibration validity, with the sensitivity of the GUSS scale (72.73%) superior to that of the SSA scale, but the GUSS scales′ specificity, Jordan index and area under the operating characteristics curve were inferior to the SSA scale′s values. Combining the two scales in dysphagia screening could produce an area under the curve of 0.77.Conclusion:Both the SSA and GUSS scales have good reliability and validity in screening for swallowing disorders after a stroke. In clinical practice, the SSA alone or the two in series can improve diagnoses so as to prevent aspiration after a stroke.
