Validity and reliability of a questionnaire on knowledge of cardiovascular risk factors for use in Brazil

• Main Authors: Marco Aurelio Lumertz Saffi, Luis Joeci Jacques de Macedo Junior, Melina Maria Trojahn, Carisi Anne Polanczyk, Eneida Rejane Rabelo-Silva
• Format: Article
• Language: English
• Published: Universidade de São Paulo 2013-10-01
• Series: Revista da Escola de Enfermagem da USP
• Subjects: Enfermedad coronaria; Factores de riesgo; Educacion en salud; Atencion de enfermeira; Cuestionarios; Estudios de validacion
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0080-62342013000501083&lng=en&tlng=en

Using a sample of patients with coronary artery disease, this methodological study aimed to conduct a cross-cultural adaptation and validation of a questionnaire on knowledge of cardiovascular risk factors (Q-FARCS), lifestyle changes, and treatment adherence for use in Brazil. The questionnaire has three scales: general knowledge of risk factors (RFs); specific knowledge of these RFs; and lifestyle changes achieved. Cross-cultural adaptation included translation, synthesis, back-translation, expert committee review, and pretesting. Face and content validity, reliability, and construct validity were measured. Cronbach’s alpha for the total sample (n = 240) was 0.75. Assessment of psychometric properties revealed adequate face and content validity, and the construct revealed seven components. It was concluded that the Brazilian version of Q-FARCS had adequate reliability and validity for the assessment of knowledge of cardiovascular RFs.