title: Validity and reliability of a questionnaire on knowledge of cardiovascular risk factors for use in Brazil.
abstract: 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.
authors.affiliation: Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.
authors.forename: Marco Aurélio Lumertz
authors.initials: MA
authors.lastname: Saffi
authors.affiliation: Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: Luis Joeci
authors.initials: LJ
authors.lastname: Jacques de  Macedo Junior
authors.affiliation: Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: Melina Maria
authors.initials: MM
authors.lastname: Trojahn
authors.affiliation: Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: Carisi Anne
authors.initials: CA
authors.lastname: Polanczyk
authors.affiliation: Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: Eneida Rejane
authors.initials: ER
authors.lastname: Rabelo-Silva
mesh_terms: D000368:Aged; D001938:Brazil; D002318:Cardiovascular Diseases; D003466:Cultural Characteristics; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D015203:Reproducibility of Results; D012307:Risk Factors; D011795:Surveys and Questionnaires