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Cross-cultural translation, adaptation and validation of a Japanese version of the Functional Index for Hand Osteoarthritis (J-FIHOA)
- Source :
- BMC Musculoskeletal Disorders, Vol 21, Iss 1, Pp 1-12 (2020), BMC Musculoskeletal Disorders
- Publication Year :
- 2020
- Publisher :
- Research Square Platform LLC, 2020.
-
Abstract
- Background Hand osteoarthritis (OA) has a wide spectrum of clinical presentations and physical function is one of the core domains where patients suffer. The Functional Index for Hand Osteoarthritis (FIHOA) is a leading assessment tool for hand OA-related functional impairment. Our objective was to make a Japanese version of FIHOA (J-FIHOA) and validate it among Japanese hand OA patients. Methods Forward and backward translation processes were completed to create a culturally adapted J-FIHOA. A prospective, observational multicenter study was undertaken for the validation process. Seventeen collaborating hospitals recruited Japanese hand OA patients who met the American College of Rheumatology criteria. A medical record review and responses to the following patient-rated questionnaires were collected: J-FIHOA, Hand20, Health Assessment Questionnaire (HAQ), numerical rating scale for pain (NRS pain) and Short Form 36 Health Survey (SF-36). We explored the structure of J-FIHOA using factor analysis. Cronbach’s alpha coefficients and item-total correlations were calculated. Correlations between J-FIHOA and other questionnaires were evaluated for construct validity. Participants in clinically stable conditions repeated J-FIHOA at a one- to two-week interval to assess test-retest reliability. To evaluate responsiveness, symptomatic patients who started new pharmacological treatments had a 1-month follow-up visit and completed the questionnaires twice. Effect size (ES) and standardized response mean (SRM) were calculated with pre- and post-treatment data sets. We assessed responsiveness, comparing ES and SRM of J-FIHOA with other questionnaires (construct approach). Results A total of 210 patients participated. J-FIHOA had unidimensional structure. Cronbach’s alphas (0.914 among females and 0.929 among males) and item-total correlations (range, 0.508 to 0.881) revealed high internal consistency. Hand20, which measures upper extremity disability, was strongly correlated with J-FIHOA (r = 0.82) while the mental and role-social components of SF-36 showed no correlations (r = − 0.24 and − 0.26, respectively). Intraclass correlation coefficient for test-retest reliability was 0.83 and satisfactory. J-FIHOA showed the highest ES and SRM (− 0.68 and − 0.62, respectively) among all questionnaires, except for NRS pain. Conclusions Our results showed J-FIHOA had good measurement properties to assess physical function in Japanese hand OA patients both for ambulatory follow-up in clinical practice, and clinical research and therapeutic trials.
- Subjects :
- Adult
Cross-Cultural Comparison
Male
Translation
medicine.medical_specialty
lcsh:Diseases of the musculoskeletal system
Sports medicine
Hand Joints
Intraclass correlation
medicine.medical_treatment
Patient reported outcome measure
Evaluation study
03 medical and health sciences
0302 clinical medicine
Japan
Rheumatology
Cronbach's alpha
Rating scale
Surveys and Questionnaires
Osteoarthritis
Hand osteoarthritis
medicine
Humans
Orthopedics and Sports Medicine
Longitudinal Studies
Prospective Studies
030212 general & internal medicine
Aged
Aged, 80 and over
030203 arthritis & rheumatology
Rehabilitation
FIHOA
business.industry
Medical record
Reproducibility of Results
Construct validity
Middle Aged
Physical therapy
Female
Observational study
lcsh:RC925-935
business
Follow-Up Studies
Research Article
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- BMC Musculoskeletal Disorders, Vol 21, Iss 1, Pp 1-12 (2020), BMC Musculoskeletal Disorders
- Accession number :
- edsair.doi.dedup.....ef8f97feb0222f5d8c10d2a78b8a0d7e