PALAVRAS-CHAVE

AIMS: To validate the Brazilian version of the Fresno test of competence in Evidence-Based Medicine.METHODS: This is a cross-sectional, validation study. Phase 1: translation of the Fresno instrument. Phase 2: validation of the translated version, which was tested in 70 undergraduate medical students. The psychometric properties evaluated were validity, internal consistency, and sensitivity to change.RESULTS: Overall, validity was adequate; most items showed a moderate to strong and significant correlation with the total score; there was an important and significant difference between both groups, with and without previous contact with Evidence-Based Medicine (median, 55 [IQ25-75, 45.2-61.7] vs. median, 18.5 [IQ25-75, 6.0-29.7]) (p <0.001). Internal consistency was also adequate (α-C 0.718), and sensitivity to change showed a considerable and significant difference between pre and post-test (median, 18.5 [IQ25-75, 6.0-29.7] vs. median, 44 [IQ25-75, 34.0-60.0]) (p <0.001).CONCLUSIONS: The Brazilian version of the Fresno test showed satisfactory psychometric properties, and it can now be used as a tool to assess the knowledge and skills of Evidence-Based Medicine in Brazilian medical students.

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Background: It is well known that the family environment is associated with child health behavior and outcomes. However, there is a lack of available instruments to measure family health behaviors, even more so in languages other than English. The aim of the present study was to adapt and validate the Family Health Behavior Scale (FHBS) for Brazilian families.Methods: The FHBS was translated and culturally adapted for the Brazilian families. Psychometric properties (content validity, construct validity, and concurrent validity) and reliability (internal consistency, ceiling-floor effect, and test-retest) were evaluated in a sample of healthy community-dwelling children who were between 5 to 12 years old, of both sexes. Caregivers responded to the FHBS. Concurrent validity was assessed by comparing the FHBS scale with Body Mass Index (BMI) percentile, percent body fat, and physical activity level.Results: 272 children (54% girls) with a mean age of 7.9 years (SD = 2.0) and their caregivers were tested. Confirmatory analysis of the initial 4-factor structure (as proposed in the original English version of the questionnaire) suggested its performance was below acceptable. Exploratory factor analysis showed however an acceptable fit (Kaiser-Meyer-Olkin index = 0.79), and the factor loadings suggested a 7-factor model. Children who were considered obese (BMI percentile ≥ 97) had lower mean total FHBS scores than children who had a healthy weight or were overweight. Children who were classified as having a healthy fat percentage had higher FHBS scores than children classified as having an excessively high fat percentage. Children who were physically active had significantly higher total FHBS scores than children who were physically inactive. Cronbach's alpha was 0.81 and we noted acceptable values of the ceiling-floor effect. Test-retest analyses showed lower agreement and intraclass correlation coefficients ​​than expected 0.63 (95% CI 0.41 to 0.78).Conclusion: The adapted Family Health Behavior Scale for the Brazilian population showed adequate psychometric properties.