[Spanish cultural adaptation and psychometric validation of the Summary of Diabetes Self Care Activities measure (SDSCA) among persons with type 2 diabetes mellitus]
OBJECTIVE To undertake the cultural adaptation and the psychometric assessment of the Summary of Diabetes Self Care Activities measure (SDSCA) in Spanish population with type 2 diabetes mellitus. DESIGN Clinimetric validation study. SETTING Primary health care centers of District Malaga and Valle del Guadalhorce. PARTICIPANTS Three hundred thirty one persons with type 2 diabetes mellitus. MAIN MEASUREMENTS The SDSCA validated in mexican population was subjected to semantic and content equivalence using a Delphi method, its legibility was determined by INFLESZ scale. Subsequently psychometric validation was conducted through exploratory and confirmatory factor analysis (herein after EFA and CFA) internal consistency, test retest reliability and discriminant validity. RESULTS Two rounds were needed to achieve the consensus in between the panel members. Then, the index provided a good readability. The EFA suggested a model with 3 factors (diet, exercise and self analysis) with 7 items which explained 79.16% variance. The results of CFA showed a good fit of SDSCA Sp. The Internal consistency was moderate to low (a Cronbach =0.62) and test retest reliability was evaluated in 198 patients (t=0.462 0.796, p<0.001) with a total correlation of 0.764 (p< 0.0001) CONCLUSIONS The SDSCA Sp is used, in a valid way to assess self care in type 2 DM version in clinical practice and research with similar clinimetric properties to previous studies.
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