Translation and Cross-Cultural Adaptation of the Questionnaire on Stress in Diabetic Patients (QSD-R) to Brazilian Portuguese

Diabetes mellitus is a chronic disease that can cause psychological stress. This study was conducted to perform the translation and cross-cultural adaptation of the QSD-R for diabetic patients into Portuguese (Brazil). This study was a cross-cultural adaptation process carried out in a public university in São Paulo, Brazil, in three stages: translation and backtranslation by two native-speaking independent professionals, analysis by a committee of specialists, and a pre-test phase. The final version was created by seven experts after making semantic, idiomatic, and cultural changes to eighteen items. The results indicated a satisfactory content validation index (CVI ≥ 0.80). This version was applied to 30 patients. No item was excluded from the instrument. The translated version of the QSD-R was considered adequate and culturally adapted for use in Brazil to enable the psychometric validation of the instrument.