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This study aimed to validate the simplified Chinese version of the Japanese Orthopaedic Association Cervical Myelopathy Evaluation Questionnaire (JOACMEQ) for Chinese patients with cervical spondylotic myelopathy (CSM). The construct validity was conducted using confirmatory factor analysis (CFA). The convergent validity was based on factor loading, composite reliability (CR), and Pearson correlation coefficients ( r ). Internal consistency reliability was evaluated using Cronbach’s  α , test–retest reliability using intraclass correlation coefficients (ICC), and the ceiling and floor effects were also examined. A total of 168 native Chinese-speaking patients were enrolled. The CFA indicated that construct validity did not meet the preset criteria to be considered as good. Except for Q 4-1, the factor loading was higher than the standard of 0.5, and the CR values ranged from 0.70 to 0.85. Strong to moderate correlations were found between other scales and the simplified Chinese JOACMEQ. The scale showed good internal consistency reliability (Cronbach’s  α  0.639–0.821), and test–retest reliability (ICC 0.760–0.916). Moreover, the ceiling effect was displayed from Q1 to Q4. This study indicates that the simplified Chinese JOACMEQ is a reliable and valid measure of the functional status among Chinese patients with CSM.IMPLICATIONS FOR REHABILITATIONThe JOACMEQ was translated into the simplified Chinese and culturally adapted for Chinese-speaking patients with CSM for the first time.The simplified JOACMEQ demonstrated an excellent level of internal consistency and good test–retest reliability.The simplified Chinese JOACMEQ was reliable and valid for the measurement of the functional status among the patients with CSM. The JOACMEQ was translated into the simplified Chinese and culturally adapted for Chinese-speaking patients with CSM for the first time. The simplified JOACMEQ demonstrated an excellent level of internal consistency and good test–retest reliability. The simplified Chinese JOACMEQ was reliable and valid for the measurement of the functional status among the patients with CSM.

disability and rehabilitation

Simplified Chinese version of the Japanese Orthopaedic Association Cervical Myelopathy Evaluation Questionnaire: cross-cultural adaptation, reliability, and validity for patients with cervical spondylotic myelopathy