The validity and 4-year test-retest reliability of the Brazilian version of the Eating Attitudes Test-26

The validity and 4-year test-retest reliability of the Brazilian version of the Eating Attitudes Test-26

Autor Nunes, M.a. Autor UNIFESP Google Scholar
Camey, S. Google Scholar
Olinto, M.t.a. Google Scholar
Mari, Jair de Jesus Autor UNIFESP Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Universidade Federal do Rio Grande do Sul Departamento de Estatística
Universidade Vale do Rio dos Sinos Centro de Ciências da Saúde
Resumo In a cross-sectional study conducted four years ago to assess the validity of the Brazilian version of the Eating Attitudes Test-26 (EAT-26) for the identification of abnormal eating behaviors in a population of young females in Southern Brazil, 56 women presented abnormal eating behavior as indicated by the EAT-26 and the Edinburgh Bulimic Investigation Test. They were each matched for age and neighborhood to two normal controls (N = 112) and were re-assessed four years later with the two screening questionnaires plus the Composite International Diagnostic Interview (CIDI). The EAT results were then compared to diagnoses originating from the CIDI. To evaluate the temporal stability of the two screening questionnaires, a test-retest design was applied to estimate kappa coefficients for individual items. Given the prevalence of eating disorders of 6.2%, the CIDI psychiatry interview was applied to 161 women. Of these, 0.6% exhibited anorexia nervosa and 5.6%, bulimia nervosa (10 positive cases). The validity coefficients of the EAT were: 40% sensitivity, 84% specificity, and 14% positive predictive value. Cronbach's coefficient was 0.75. For each EAT item, the kappa index was not higher than 0.344 and the correlation coefficient was lower than 0.488. We conclude that the EAT-26 exhibited low validity coefficients for sensitivity and positive predictive value, and showed a poor temporal stability. It is reasonable to assume that these results were not influenced by the low prevalence of eating disorders in the community. Thus, the results cast doubts on the ability of the EAT-26 test to identify cases of abnormal eating behaviors in this population.
Palavra-chave Validity coefficients
Eating Attitudes Test-26 (EAT-26)
Abnormal eating behavior
Eating disorders
Anorexia
Bulimia
Idioma Inglês
Data de publicação 2005-11-01
Publicado em Brazilian Journal of Medical and Biological Research. Associação Brasileira de Divulgação Científica, v. 38, n. 11, p. 1655-1662, 2005.
ISSN 0100-879X (Sherpa/Romeo, fator de impacto)
Publicador Associação Brasileira de Divulgação Científica
Extensão 1655-1662
Fonte http://dx.doi.org/10.1590/S0100-879X2005001100013
Direito de acesso Acesso aberto Open Access
Tipo Artigo
Web of Science WOS:000232915100013
SciELO S0100-879X2005001100013 (estatísticas na SciELO)
Endereço permanente http://repositorio.unifesp.br/handle/11600/2744

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