Peifang Li
West China Hospital, China
Title: The Chinese version of neck outcome score: Cross-cultural adaption, psychometric test
Biography
Biography: Peifang Li
Abstract
Background: Neck OutcOme Score (NOOS) is a recently developed and clinimetrically valid patient reported outcome measure to evaluate the impact of neck pain. The purpose of this study was to cross-culturally adapt and psychometrically validate a Chinese version of the NOOS (NOOS-C).
Methods: Cross cultural adaptation of NOOS was performed according to the Beaton’s guidelines for cross-cultural adaptation of self-report measures. Consecutive patients with neck pain were recruited to test the psychometric properties of NOOS-C. Ceiling and floor effects were assessed by more than 15% of the participants reporting the lowest or highest possible score. Homogeneity was evaluated by internal consistency and item-total correlations. Construct validity was determined by correlating subscale scores from NOOS-C and NDI-C items. Test-retest reliability of the NOOS-C was assessed by intraclass correlation coefficient (ICC). Responsiveness was analyzed as standardized response mean (SRM).
Results: At baseline, 246 outpatients with neck pain were recruited. There were no ceiling and floor effects in NOOS-C. The internal consistency of all subscales for NOOS-C was 0.715-0.900, except for symptoms subscale (α= 0.497), and the item-total correlations of all items were more than 0.2. The construct validity was acceptable. Test-retest reliability was excellent with ICC values between 0.89 and 0.95. RSMs ranged between 0.22-1.90 for the NOOS-C and its subscales.
Conclusion: NOOS-C demonstrates good clinical utility, reliability, construct validity and responsiveness for NP patients and can be recommended for assessment of patient-reported health status and evaluation of treatment effects in Chinese patients with neck problems.