Fig. 2From: Global assessment of migraine severity measure: preliminary evidence of construct validityAssociation between GAMS and MIDAS Severity Question, MIDAS, PHQ-9 score and Time from Migraine Onset NB: GAMS = Global Assessment of Migraine Severity; MIDAS = Migraine Disability Scale; PHQ-9 = 9-item Patient Health QuestionnaireBack to article page