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

Marco Aurélio Lumertz Saffi1, Luis Joeci Jacques de Macedo Junior2, Melina Maria Trojahn2

  • 1Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.

Revista Da Escola De Enfermagem Da U S P
|December 19, 2013
PubMed

Insights

This study adapted and validated the Q-FARCS questionnaire for Brazilian patients with coronary artery disease. The validated tool effectively assesses knowledge of cardiovascular risk factors and lifestyle changes.

Area of Science:

  • Cardiology
  • Psychometrics
  • Health Education

Background:

  • Coronary artery disease (CAD) management requires patient understanding of risk factors and adherence to lifestyle changes.
  • A validated tool is needed to assess patient knowledge in the Brazilian population.

Purpose of the Study:

  • To perform cross-cultural adaptation and validation of the Questionnaire on Knowledge of Cardiovascular Risk Factors (Q-FARCS) for use in Brazil.
  • To evaluate the psychometric properties of the Brazilian version of Q-FARCS.

Main Methods:

  • The study involved cross-cultural adaptation (translation, expert review, pretesting) of the Q-FARCS.
  • Psychometric properties including face, content, reliability, and construct validity were assessed in 240 CAD patients.
  • Cronbach's alpha was used to measure reliability.

Main Results:

  • The cross-cultural adaptation process was successfully completed.
  • The Brazilian version of Q-FARCS demonstrated adequate face and content validity.
  • Reliability analysis (Cronbach's alpha = 0.75) and construct validity (seven components) supported its psychometric integrity.

Conclusions:

  • The Brazilian version of the Q-FARCS is a reliable and valid instrument for assessing knowledge of cardiovascular risk factors in patients with coronary artery disease.
  • This validated questionnaire can aid in improving patient education and management strategies for cardiovascular health in Brazil.

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