OBJECTIVE: To conduct the cross-cultural adaptation of the Functional Rating Index (FRI) and to test the reliability and validity of the Thai version of FRI (Thai FRI). MATERIAL AND METHOD: The cross-cultural adaptation process was used to develop the Thai FRI. The two groups ofpatients comprised @entity1643 ( @entity1643 ) and neckpain (NP). Each @entity1 was asked to complete the questionnaires twice: at thefirst and second visits. The @entity1 with @entity1643 completed the Thai FRI, Roland-Morris Disability, modified Oswestry Low Back @entity158 Disability and multi-levelRoland-Morris Disability, while the @entity1 with NP completed the Thai FRI and Thai Neck Disability Index. Each @entity1 was also asked to rate a Global Perceived Effect Scale at the second visit. Reliability and cross- sectional construct validity of the Thai FRI were evaluated. Minimal detectable change (MDC95%) was calculated. RESULTS: The FRI was cross-culturally adapted to Thai and the adapted version was validated. In total, 161 @entity1 with @entity1643 and 84 @entity1 with NP completed the questionnaires. Cronbach ' alphafor the Thai FRI equaled 0.86 for @entity1643 and 0.83 for NP, ICC(2,1) equaled 0.82 for @entity1643 and 0.89 for NP correlations between the Thai FRI and other questionnaires ranged from 0.68 to 0.78 for both groups. The MDC(95%) equaled 2.5 for @entity1643 and 2.3 for NP. CONCLUSION: The Thai FRI was developed and validated. Its measurement properties demonstrated acceptable internal consistency, good test-retest reliability and moderate to high cross-sectional construct validity.

Thai Version of the Functional Rating Index for XXXX with Back and Neck @entity158 : Part 1 Cross-Cultural Adaptation, Reliability and Validity.

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity1643 :: ('MESH:D017116', 'Disease') :: ['low back pain', 'LBP'] @entity158 :: ('MESH:D010146', 'Disease') :: ['Pain']
@entity1 :: (9606,Species) :: ['Patients']
