ABSTRACT
PURPOSE: To translate and cross-culturally adapt the Turkish version of the Facial Disability Index (FDI) and evaluate its psychometric properties, including reliability and validity. METHODS: Translation of the original FDI was followed by international guidelines. Paralysis classification was evaluated with House-Brackman Rating System (HBGS). Patients completed Short Form-36 (SF-36) along with the Turkish version of the FDI and refilled the Turkish FDI one week later. Internal consistency and test-retest reliability were analyzed using Cronbach's alpha coefficient and intraclass correlation coefficient (ICC), respectively. Construct validity was assessed by calculating the Spearman's correlation coefficient. Also, exploratory factor analysis was carried out by identifying the factor structure of the scale. RESULTS: After the pre-test of the Turkish FDI, there was no need for linguistic and cultural adaptation. The internal consistency of the physical function subscale was high (0.82). The social/well-being subscale's Cronbach alpha (0.63) was within the acceptable range. Test-retest reliability was excellent (ICC of physical function = 0.91 and social/well-being = 0.93, p < 0.05). The physical function subscale was correlated with the PF subscale of SF-36 and HBGS (r = -0.837 and 0.292, respectively; p < 0.05). Besides, the social/well-being function subscale was correlated with HBGS and all subscales of SF-36, except RP (p < 0.05). Factor analysis results of the Turkish FDI were similar to the other version studies. CONCLUSION: The Turkish version of the FDI is a valid and reliable questionnaire in patients with peripheral facial paralysis.IMPLICATIONS FOR REHABILITATIONThe Turkish version FDI is the first Turkish tool translated cross-culturally adapted for specific assessment of facial paralysis.The Turkish version of the FDI is a valid and reliable questionnaire and can be used in all native Turkish speaking patients in peripheral facial paralysis.This assessment tool can be used in clinical routine and research settings to evaluate facial paralysis.
Subject(s)
Disability Evaluation , Surveys and Questionnaires , Humans , Psychometrics , Reproducibility of Results , TranslationsABSTRACT
PURPOSE: To translate and cross-culturally adapt the Turkish version of the Graded Chronic Pain Scale-Revised (GCPS-R) and to evaluate its reliability and validity. METHODS: The prospective and cross-sectional study was performed with 102 low back pain patients (67 women, 35 men). Patients were asked to complete the GCPS-R twice, one week apart. Visual Analog Scale (VAS), Roland Morris Disability Questionnaire (RMDQ), Short Form-36 (SF-36), Fear Avoidance Beliefs Questionnaire (FABQ) were filled only in the first evaluation. Test-retest reliability was analyzed with intraclass correlation coefficient (ICC). Internal consistency was measured using Cronbach's α. The minimal detectable change (MDC95) was calculated based on the standard error of measurement (SEM95). The construct validity was analyzed using the Pearson correlation coefficient. Exploratory factor analysis was calculated to explore the factor structure of GCPS-R. RESULTS: The mean age of the patients was 45.2 ± 13.1 years. The internal consistency was acceptable, and test-retest reliability was excellent (α = 0.933, ICC = 0.972). SEM95 and MDC95 for the total score were 2.07 and 5.73, respectively. VAS measured for both rest and activity were strongly correlated with GCPS-R (r > 0.50). The correlation between the total score of GCPS-R and RMDQ was excellent (r = 0.677, p < 0.001). SF-36's; physical function, role physical, bodily pain and social function subscores were strongly correlated with GCPS-R (r > 0.50). There was moderate correlation between GCPS-R and the physical activity subscore of the FABQ (r = 0.494, p < 0.001). GCPS-R had a single factor structure as expected. CONCLUSION: The Turkish version of GCPS-R is a valid and reliable questionnaire in patients with chronic low back pain. Level of Evidence II (Diagnostic: individual cross-sectional studies with consistently applied reference standard and blinding).