Reliability and validity test of Chinese version of the Type 2 Diabetes Unsupportive Social Interaction Scale

Abstract

Objective To translate the Unsupportive Social Interaction Scale (USIS) into Chinese and evaluate its reliability and validity in patients with type 2 diabetes mellitus (T2DM) . Methods After obtaining authorization from the original authors, through translating, double-back translation and cross-cultural adaptation, the Chinese version of USIS was formed. By convenience sampling, 242 patients with T2DM in Department of Endocrinology, in a ClassⅢ Grade A hospital in Tianjin from October 2018 to January 2019 were selected and questionnaire survey was conducted to evaluate the reliability and validity of the Chinese version of USIS. Results The Chinese version of USIS included two dimensions with 15 items. The cumulative contribution rate of two common factors was 60.63%. The Cronbach's α coefficient of the Chinese version of USIS was 0.854, the Cronbach's α coefficient of each dimension was 0.867, 0.922, and the retest reliability was 0.859. The correlation coefficient r between each item and the total score of the total table was 0.409-0.718. Item content validity index ranged from 0.800 to 1.000, and scale content validity was 0.960. The criterion-related validity with Perceived Social Support Scale was -0.743. Conclusions The Chinese version of USIS has been proved to be valid and reliable and can be used to evaluate the unsupportive social interaction level among patients with type 2 diabetes. Key words: Diabetes mellitus, type 2; Unsupportive social interaction; Scale; Reliability; Validity