Observational studyAtencion primaria2026
Cross-cultural adaptation and validation of the Diabetic Foot Questionnaire (DiaFootQ) into Spanish Language.
Observational study in Atencion primaria, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
objectiveTo perform a cross-cultural adaptation and validation of the Diabetic Foot Questionnaire (DiaFootQ) into Spanish (DiaFootQ-Sp).
designCross-cultural adaptation, validity and reliability study. SITE: Diabetic Foot Unit (Regional University Hospital of Malaga, Spain), Podiatry Teaching Unit (University of Malaga, Spain) and private clinics across Spain.
participantsAdults over 18 years old with type 2 diabetes mellitus who were referred for diabetic foot examination or already enrolled with DFD.
methodsAn observational study was conducted in two phases: (1) translation and cross-cultural adaptation of the DiaFootQ into Spanish and (2) psychometric validation of the DiaFootQ-Sp. Recommendations by ISPOR Task Force for Translation and Cultural Adaptation were followed. Reliability and validity were assessed using internal consistency (Cronbach's α), test-retest reliability (ICC), and construct validity through factor analysis. Criterion validity was evaluated by correlating DiaFootQ-Sp with the Foot Function Index (FFI), SF-12v2, and EuroQoL.
resultsA total of n=466 participants completed the study. The DiaFootQ-Sp showed strong internal consistency (Cronbach's α=0.903) and high test-retest reliability (ICC=0.854-0.997). Sensitivity analysis reported SEM=2.195 and MDC90=5.121. Construct validity was confirmed (KMO=0.677, Bartlett's test p<0.001). Criterion validity showed significant correlations with the EuroQol-5D (r=0.889) and SF-12 (r=0.353). The mean completion time was 8.61min.
conclusionsDiaFootQ was successfully adapted and validated for Spanish-speaking population, providing a useful and reliable tool to assess patients with DFD. The quality of care and prevention might be enhanced by implementing this instrument in clinical practice.
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