Fig. 2From: Short-term diagnostic stability of probable headache disorders based on the International Classification of Headache Disorders, 3rd edition beta version, in first-visit patients: a multicenter follow-up studyThe proportions of whom have constant probable diagnosis between probable migraine, probable tension-type headache, and probable other primary headache disorders according to headache recurrence during follow-up (abbreviations: TTH, tension-type headache; OPHD, other primary headache disorders; FU, follow-up). *Comparison between probable migraine versus probable TTH plus probable OPHD groupsBack to article page