A description of respondents' self-care abilities is provided for the whole sample and for sub-groups by gender, age, instruction and income levels. Cronbach's Alfa and Intraclass Correlation Coefficient showed acceptable values considering the multidimensionality of SDSCA. High values were obtained in 3 out of 5 sub-classes of items. As in previous studies, specific diet and physical exercise sub-classes showed limited internal consistency. Cohen's Kappa Concordance Correlation Coefficient and t-test demonstrated high test-retest reliability of SDSCA. Overall SDSCA score did not show significant correlations with selected clinical outcomes; however 3 SDSCA single items significantly correlated with glicated emoglobin, complications and the clinical judgment of the diabetes case manager nurse.