Translation, cross-cultural adaptation, and validation of a chinese version of the japanese orthopaedic association cervical myelopathy evaluation questionnaire
Journal
Spine
Journal Volume
39
Journal Issue
12
Pages
963-970
Date Issued
2014
Author(s)
Abstract
STUDY DESIGN.: Translation and psychometric testing of a questionnaire. OBJECTIVE.: To adapt the Japanese Orthopaedic Association Cervical Myelopathy Evaluation Questionnaire (JOACMEQ) cross-culturally to Chinese language and to investigate the psychometric properties of the translated Chinese JOACMEQ. SUMMARY OF BACKGROUND DATA.: The recently developed JOACMEQ is a self-reported questionnaire used to assess the severity of the cervical spondylotic myelopathy. Despite its acceptance in the literature, the JOACMEQ has not been translated and validated for Chinese-speaking patients. METHODS.: Translation and cross-cultural adaptation of the original JOACMEQ was performed according to published guidelines. A total of 105 patients with a predominant complain of neck pain that included but not limited to patients with a clinically confirmed cervical spondylotic myelopathy were included. Psychometric testing of the responses included construct validity (factor analysis), internal consistency (Cronbach α), test-retest reproducibility (intraclass correlation coefficient), and concurrent validity (Spearman ρ). The discriminatory power of differentiating those with myelopathy from those without was assessed by the area under the receiver operating characteristic curve and with the optimal cutoff points determined. RESULTS.: Construct validity testing revealed a comparable factorial structure of the Chinese JOACMEQ with the original JOACMEQ. The Cronbach α of the Chinese JOACMEQ was 0.88, indicating good internal consistency. Good to excellent test-retest reliability was demonstrated for all 5 domain scores (intraclass correlation coefficient range = 0.79-0.90). A significant strong association between the Chinese Neck Disability Index and the quality of life domain of the Chinese JOACMEQ (Spearman ρ=-0.76, P < 0.01) was identified. The upper and lower extremity function domain scores were found to be significant, with the area under the receiver operating characteristic curve found to be 0.75 (P = 0.04) and 0.82 (P = 0.02), respectively. CONCLUSION.: The results indicated that the Chinese JOACMEQ successfully retained the psychometric properties of the original JOACMEQ and support the usefulness of the Chinese JOACMEQ as an appropriate supplementary diagnostic and outcome measure for Chinese patients suspected of cervical spondylotic myelopathy. Copyright ? 2014 Lippincott Williams &Wilkins.
Other Subjects
adaptation; arm; article; bladder function; cervical spine; cervical spondylotic myelopathy; Chinese; concurrent validity; construct validity; controlled study; correlation coefficient; cultural factor; diagnostic accuracy; diagnostic test accuracy study; discriminant validity; human; internal consistency; Japanese Orthopaedic Association Cervical Myelopathy Evaluation; Japanese Orthopaedic Association Cervical Myelopathy Evaluation Questionnaire Chinese version; language; leg; major clinical study; neck pain; priority journal; psychometry; quality of life; questionnaire; scoring system; self report; sensitivity and specificity; test retest reliability; validation study; adult; aged; area under the curve; cervical spine; China; clinical trial; complication; cultural anthropology; female; male; middle aged; multicenter study; neck pain; pilot study; questionnaire; receiver operating characteristic; reproducibility; severity of illness index; spinal cord compression; spondylosis; symptom assessment; translating (language); university hospital; young adult; Adult; Aged; Area Under Curve; Cervical Vertebrae; China; Culture; Female; Hospitals, University; Humans; Male; Middle Aged; Neck Pain; Pilot Projects; Psychometrics; Questionnaires; Reproducibility of Results; ROC Curve; Self Report; Severity of Illness Index; Spinal Cord Compression; Spondylosis; Symptom Assessment; Translating; Young Adult
Publisher
Lippincott Williams and Wilkins
Type
journal article