• Walkiria Shimoya-Bittencourt, Aldair Darlan Santos-de-Araújo, Natália de Castro Corrêa, Meire Coelho Ferreira, Maria Jacqueline Silva Ribeiro, Rodrigo Costa Cutrim, Ariane Hidalgo Mansano Pletsch, Ana Karolina Franzim Garcia, Beatriz Nogueira de Araújo, and Daniela Bassi-Dibai.
• Centro Universitário de Várzea Grande - Cuiabá (MT), Brazil.
• Rev Assoc Med Bras (1992). 2022 May 1; 68 (5): 610-615.

ObjectiveThis study aimed to translate, cross-culturally adapt, and validate the Heart Disease Fact Questionnaire into Brazilian Portuguese.MethodsThe Brazilian version of the Heart Disease Fact Questionnaire was developed through the processes of translation, back-translation, review committee, and pre-test. Test-retest reliability was measured using the intraclass correlation coefficient and the kappa coefficient. Internal consistency was measured using Cronbach's alpha. For construct validity, the total Heart Disease Fact Questionnaire score was correlated with the Diabetes Knowledge Scale and the Diabetes Attitudes Questionnaire. Ceiling and floor effects were also evaluated in this study.ResultsFor construct validity and floor and ceiling effect measurements, a total of 100 participants were selected. Reliability was measured using a sub-sample of 30 participants from the total sample. We identified adequate values of reliability (kappa between 0.22 and 1.00 and ICC=0.75) and internal consistency (Cronbach's alpha=0.79). We observed adequate correlations of the Heart Disease Fact Questionnaire score with Diabetes Knowledge Scale (r=0.348) and Diabetes Attitudes Questionnaire (r=0.136). No ceiling or floor effects found.ConclusionBrazilian Portuguese version of the Heart Disease Fact Questionnaire has adequate psychometric properties according to the best scientific recommendations.

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