Portuguese validation of the Rome III diagnostic questionnaire for functional XXXX .

@entity1 @entity1109 @entity2210
CONTEXT: Validated questionnaires are essential tools to be utilized in epidemiological research. At the moment there are no Rome III diagnostic questionnaires translated to Portuguese. OBJECTIVE: To validate the Portuguese version of the Rome III Diagnostic Questionnaire for Functional @entity2210 . METHODS: The questionnaire has been translated following the Rome III recommendations. Hundred and nine consecutive @entity1 with functional @entity2210 answered the questionnaire. The control group comprised 100 healthy consecutive blood donors, without digestive problems. Internal consistency, reproducibility, responsiveness, discriminate validity and content analysis were evaluated. RESULTS: Cronbach's a coefficient was 0.92. The questionnaire showed reliability: the @entity1 answered it in a similar way on two distinct occasions and their responses were substantially very similar (P = 1.00). The questionnaire was able to demonstrate changes when they occur (P<0.01). Two "blinded" gastroenterologists agreed that the questionnaire adequately evaluated Functional @entity2210 . When we compared the answers between @entity1 and controls, the questionnaire showed that 5.3% of controls had @entity1109 compared with 91.2% of the @entity1 (P<0.01). CONCLUSION: The Rome III Diagnostic Questionnaire for Functional @entity2210 is ready to be used in clinical researches in lusophone countries, as it has been successfully validated in Portuguese.
