Abstract
Purpose
To translate and cross-culturally adapt the Back Beliefs Questionnaire (BBQ) and Fear-Avoidance Beliefs Questionnaire (FABQ) into traditional Chinese for their use in patients experiencing low back pain (LBP).
Methods
This was a prospective questionnaire translation and psychometric validation of the BBQ and FABQ in Chinese patients with back pain. Patients also completed the Traditional Chinese (Hong Kong) versions of the Oswestry Disability Index (ODI), the Short Form-12 version 2 (SF-12v2) questionnaires and the visual analogue scale (VAS) for LBP. Construct validity was assessed using Spearman's correlation test against the subscales and domains with similar constructs. Internal consistency was assessed by Cronbach's alpha (α). Sensitivity was determined by known-group comparisons.
Results
A total of 100 patients were recruited. Both BBQ (α = 0.810) and FABQ (α = 0.859) demonstrated excellent overall internal consistency. BBQ scores significantly correlated with ODI scores, VAS-LBP and all domains of SF-12v2 (p < 0.01–0.05), whereas only FABQ Work subscale correlated with ODI scores (p < 0.01) and VAS-LBP (p < 0.05). Both FABQ subscales correlated with only specific domains of SF-12v2 (p < 0.01–0.05). FABQ-W was sensitive to difference between patients with acute versus chronic back pain.
Conclusions
Both the adapted BBQ and FABQ (Traditional Chinese-Hong Kong) were demonstrated to have satisfactory psychometric properties, with adequate internal consistencies, construct validity and sensitivity to certain clinical parameters. Our findings were based on a clinically relevant patient group and provides insight into patients' own perception of back pain which may often be different from that of surgeons. This is a platform for future cross-cultural comparisons.
Level of evidence
2.
Graphical abstract
These slides can be retrieved under Electronic Supplementary Material. 
from #ORL-AlexandrosSfakianakis via ola Kala on Inoreader https://ift.tt/2pWNbu1
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