Cross Cultural Adaptation and Validation of Hindi Version of WHOQOL-BREF in Patients With Chronic Low Back Pain

Aim of the study was to validate Hindi version of WHOQOL-BREF in chronic low back pain patients (CLBP). In this cross-sectional study, 111 patients with CLBP were recruited. In addition to demographic information, two questionnaires Hi WHOQOL-BREF and SF-36 (Reference scale) were administered at day 0 and day 3. NRS was used for pain evaluation. Cronbach’s alpha coefficient was used for scale reliability. Construct validity was analysed using Pearson correlation coefficient. Confirmatory factor analysis was performed to determine the relationships between the eight domains of SF-36 and four domains of the WHOQOL-BREF.Cronbach’s alpha coefficients were acceptable for all domains of both Hi WHOQOL-BREF (0.869 - 0.938) and SF-36 (0.752 - 0.943) questionnaires. Pearson correlation coefficients of both instruments were partly to strongly correlate with most domains (r ≥0.40). Correlations for domains with similar constructs were stronger than those measuring varied constructs. Confirmatory factor analysis recommended approximately good relationships among the SF-36 and WHOQOL-BREF domains. Our study suggests that WHOQOL-BREF Hindi version is a reliable and valid tool for clinical and research use in CLBP.