Reliability and Validity of the Chinese Mandarin Version of the 10-Item Eating Assessment Tool in Community-Dwelling Older Adults.

Abstract

Objectives: This study aimed to culturally adapt and validate the Chinese Mandarin version of the 10-Item Eating Assessment Tool (EAT-10-CM) for Chinese community-dwelling older adults.

Method: A total of 346 Chinese community-dwelling older adults participated in this study, with 47 individuals included in the second testing phase. Reliability was assessed through internal consistency and test-retest reliability. Validity analysis covered several aspects: instrument validity, convergent validity, concurrent validity, content validity, and discriminant validity. Instrument validity was assessed by comparing EAT-10-CM scores between participants with and without oropharyngeal dysphagia (OD). Convergent validity was evaluated by comparing the EAT-10-CM with the Dysphagia Handicap Index (DHI). Concurrent validity was assessed by comparing the EAT-10-CM with the Penetration-Aspiration Scale. Content validity was examined using the content validity index, based on the input of 10 expert reviewers. Discriminant validity was analyzed using receiver operating characteristic (ROC) analysis to determine the optimal cutoff value.

Results: The Cronbach's alpha for the total scale and individual items was > 0.9, indicating excellent internal consistency. Test-retest reliability was assessed using Pearson's correlation analysis, which showed a strong correlation (r > .7), demonstrating good stability over time. Significant differences in EAT-10-CM scores were observed between participants with OD and healthy individuals, supporting the instrument's ability to differentiate between these groups. The EAT-10-CM showed significant correlations with the DHI and the Penetration-Aspiration Scale (p < .001). The content validity index was 0.95 for the scale and ≥ 0.8 for each item. ROC analysis determined an optimal cutoff value of 3.00, with corresponding sensitivity and specificity values of 0.865 and 0.940, respectively.

Conclusions: The EAT-10-CM is a culturally adapted and validated instrument specifically for Chinese older adults with good reliability and validity. The optimal cutoff value of 3.00 provides a useful threshold for clinical assessment.