• Amanda Rodrigues, Lidiane Lima Florencio, Jaqueline Martins, Marcela Mendes Bragatto, César Fernández-de-Las-Penãs, Fabiola Dach, and Débora Bevilaqua-Grossi.
• Department of Health Sciences-Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
• Int. J. Clin. Pract. 2021 Jul 1; 75 (7): e14248.

ObjectivesTo evaluate the discriminative validity and provide a clinical cut-off of the craniocervical flexion test (CCFT) in migraineurs stratified by the report of neck pain, headache-related disability and neck disability.MethodsFifty women without headache and 102 women with migraine were recruited by convenience from a local tertiary care setting. Migraine diagnosis followed the International Classification of Headache Disorders. All volunteers underwent the CCFT. Patients with migraine answered the Migraine Disability Assessment (MIDAS) and Neck Disability Index (NDI) questionnaires. Discriminative validity was verified by group comparison, and the clinical cut-off was obtained and classified according to the diagnostic accuracy of the CCFT.ResultsThe CCFT presented discriminative validity for comparing control (median = 28, IQR = 6) with migraine (median = 26, IQR = 4, P = .01) and migraine with neck pain (median = 26, IQR = 4, P = .01), but not among the migraine subtypes with disability by migraine or neck pain-related disability on the MIDAS and NDI. The diagnostic accuracies were classified between poor and not discriminating with the area under the receiver operating characteristic curve ranging from 57% to 69% and non-acceptable values of sensitivity, specificity and positive and negative likelihood ratios.ConclusionThe CCFT can discriminate asymptomatic controls from migraine patients with and without neck pain. However, it cannot discriminate patients with migraine according to their pain-related disability. Also, the CCFT does not offer an optimal cut-off value in migraine patients adequate to clinical practice.© 2021 The Authors. International Journal of Clinical Practice published by John Wiley & Sons Ltd.

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