Tradução, adaptação cultural e validação do questionário Diabetes Attitudes Scale third version (DAS-3) para a população brasileira

Abstract

To translate, cultural adapt and validate the third version of the Diabetes Attitudes Scale to the cultural context of Brazil. METHODS: This was a methodological type of study that comprised three stages: translation, cultural adaptation and validation. The first stage was carried out in partnership with the Laboratory for Experimentation in Translation of the Faculty of Letters and the Laboratory of Biostatistics at UFMG. In the second stage, the original and the translated versions were submitted to analysis by an expert committee formed by three groups of 20 professionals, each consisting of ten health professionals and ten applied linguistics professionals, who were responsible for assessing each part of the instrument. This resulted in a sample of 60 professionals distributed in equal proportion. However, 56 out of 60 professionals returned the questionnaire. After this stage, the Content Validity Index (CVI) was calculated, as well as the percentage of judges who considered the items evaluated to be adequate. All data were analyzed using R - a statistical programming environment. Then the pretest was performed with a group of 25 health professionals. The instrument was sent electronically to professionals who provide care to people with diabetes mellitus. The professionals were asked to respond to the instruments 33 statements and to evaluate each statement regarding its understandabiity and clarity. After this stage, there was an interdisciplinary meeting between researchers and health professionals, Applied Linguistics professionals and Statistics professionals, who were responsible for evaluating the suggestions made by the health professionals. Improvements were suggested and semantic, idiomatic and cultural changes were performed to each identified problem. Finally, in the third stage, in order to verify the validity and reliability of the culturally adapted instrument, it was applied to 120 health professionals on two different occasions, with a 15 days interval between the test and the retest. The questionnaire was uploaded to the web platform e-Surv. Reliability was verified by calculating the Cronbach's alpha and the stability of the instrument was estimated by the polychoric correlation coefficient. The intraclass correlation coefficient (ICC) was also used as a measure of agreement between the total score of the two applications of the instrument, while the Wilcoxon test was used to check whether there was a statistical difference between the median score of the first and second applications of the instrument. RESULTS: The translated version of the instrument was well received among judges and received an average Content Validity Index of 0.94. The Professional Attitude Scale regarding Diabetes Mellitus showed acceptable internal consistency with Cronbach's alpha = 0.60. The intraclass correlation coefficient was considered moderate (0.65), which indicates the reliability of the instrument. Moreover, the discrimination capacity of the instruments statements was considered adequate, with correlation coefficients ranging from 0.44 to 0.81. CONCLUSION: The process of translation, adaptation and validation to Brazil's spoken language resulted in the Professional Attitude Scale regarding Diabetes Mellitus, which was considered valid and reliable to be applied to the Brazilian population.