Fig. 2From: Effects of onabotulinumtoxinA treatment in patients with and without allodynia: results of the COMPEL studyOnabotulinumtoxinA effect on (a) HIT-6 and (b) MIDAS scores. HIT-6ā=ā6-Item Headache Impact Test; MIDASā=āMigraine Disability Assessment questionnaire. *Indicates Pā<ā0.001 for within-group comparison from baseline. P values shown in the figure indicate between-subgroup differences in change from baseline; data are observed dataBack to article page