• Spine · Mar 2022

    Simplified Chinese Version of the Back Pain Function Scale (BPFS) for Patients With Low Back Pain: Cross-Cultural Adaptation and Validation.

    • Cheng-Qi Jia, Shi-Qi Cao, Yu-Jie Wu, Fan-Qi Hu, Zhen Zhang, and Xue-Song Zhang.
    • Department of Orthopedics, Chinese People's Liberation Army General Hospital, Beijing, China.
    • Spine. 2022 Mar 15; 47 (6): 498504498-504.

    Study DesignA cross-sectional study.ObjectiveTo translate and cross-culturally adapt back pain function scale (BPFS) into a simplified Chinese version (SC-BPFS), and evaluate the reliability and validity of SC-BPFS in patients with low back pain.Summary Of Background DataThe BPFS is a reliable and valid evaluation instrument for low back pain. However, simplified Chinese version of BPFS has not been validated.MethodsCross-cultural adaptation was performed according to the internationally recognized guidelines of the American Academy of Orthopaedic Surgeons Outcome Committee. One-hundred and sixty-two participants with low back pain (LBP) were included in this study. Reliability was tested based on test-retest reliability and internal consistency. We calculated Cronbach alpha and intra-class correlation coefficient (ICC). Construct validity was analyzed by evaluating the correlations between SC-BPFS and the Oswestry disability index (ODI), the visual analogue scale (VAS), and the short form (36) health survey (SF-36).ResultsThe original version of the BPFS was cross-culturally well adapted and translated into simplified Chinese. Each item of the SC-BPFS was properly responded and correlated with the total items. SC-BPFS had good reliability (Cronbach alpha = 0.847, intra-class correlation coefficient [ICC] = 0.891, 95% confidence interval [CI] 0.864-0.914). Elimination of any one item in all did not result in a value of Cronbach alpha of <0.80. SC-BPFS had a high correlation with ODI (0.712, P < 0.01) and a moderate correlation with VAS (0.484, P < 0.01). And it was also fairly to very well correlated with physical domains of SF-36 (0.334-0.632, P < 0.01), and not correlated with mental domains of SF-36 (0.022-0.119, P > 0.05).ConclusionSC-BPFS demonstrated outstanding acceptability, internal consistency, reliability, and construct validity, and could be recommended for patients with LBP in Mainland China.Level of Evidence: 3.Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.

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