Cross-cultural Adaptation and Validation of the Simplified Chinese Version of the Copenhagen Neck Function Disability Scale

Abstract

Study Design. A cross-sectional study.Objective. Th aim of this study was to translate and crossculturally adapt Copenhagen Neck Function Disability Scale into a Simplified Chinese version (CNFDS-C), and evaluate the reliability and validity of CNFDS-C in patients with nonspecific chronic neck pain. Summary of Background Data. The CNFDS is a reliable and valid evaluation instrument for chronic neck pain. However, Simplified Chinese version of CNFDS hasn't been validated. Methods. A total of 150 participants were included in this study. Internal consistency was estimated according to Cronbach alpha. Test-retest reliability was assessed by intra-class correlation coefficient (ICC). Construct validity was analyzed by correlations between CNFDS-C and the Neck Disability Index (NDI), Visual Analogue Scale (VAS) as well as the short form (36) health survey (SF-36).Results. The original version of the CNFDS was cross-culturally adapted and translated into Simplified Chinese. CNFDS-C was indicated to have excellent reliability (Cronbach alpha ¼ 0.810, ICC ¼ 0.927). Moderate to substantial correlations between CNFDS-C and NDI (r ¼ 0.642, P < 0.001), VAS (r ¼ 0.581, P < 0.001), as well as Physical Function (r ¼ À0.583, P < .001), Role Physical (r ¼ À0.478, P < 0.001), Bodily Pain (r ¼ À0.610, P < 0.001), and General Health (r ¼ À0.439, P < 0.001) subscales of SF-36 were observed. Conclusion. CNFDS-C was demonstrated to have acceptable reliability and validity in patients with nonspecific chronic neck pain, which could be recommended for patients in Chinese mainland.

Psychometric validation of the simplified Chinese Copenhagen Neck Functional Disability Scale in patients with chronic nonspecific neck pain

“…During the same period of the current research, the CNFDS was translated into Chinese and validated in northern China, but only internal consistency, testretest reliability, and construct validity were investigated. 35 The CNFDS-SC of the current study was validated more thoroughly with satisfactory structural validity, responsiveness, and interpretability. And as the first Chinese neck pain measurement scale to be validated with responsiveness and interpretability, the clinical application and result interpretation are more reasonable.…”

“…There are several strengths and limitations to this study. During the same period of the current research, the CNFDS was translated into Chinese and validated in northern China, but only internal consistency, test‐retest reliability, and construct validity were investigated 35 . The CNFDS‐SC of the current study was validated more thoroughly with satisfactory structural validity, responsiveness, and interpretability.…”