ID-Migraine™ questionnaire and accurate diagnosis of migraine

Abstract

Objective: To analyze the applicability of the Portuguese version of ID-Migraine™ in a sample of Brazilian patients. Methods: Patients with headache were recruited from the neurology outpatient clinic of a tertiary hospital and submitted to the ID-Migraine™ questionnaire. The diagnosis of headache was made according to the ICHD-2 criteria. Results: Of the 232 patients, 86% had migraine. The questionnaire showed a sensitivity of 92% (95%CI, 88% to 95%), specificity of 60% (95%CI, 43% to 77%) and a positive predictive value of 93% (95%CI, 89% to 96%). Discussion: Our results were similar to other international studies of the ID-Migraine™ application. The Portuguese version is considered easy to use, and an appropriate screening tool for migraine diagnosis in our sample. Conclusion: Considering the characteristics of our health system, we can infer that this questionnaire would be beneficial in a Brazilian primary care setting; however, more studies are necessary.