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Table 1 Principal characteristics of the enrolled subjects. (n = 175)

From: OnabotulinumtoxinA in chronic migraine: is the response dose dependent?

Characteristics

Values

Age, year

47.31 ± 13.45

Sex (Female)

135 (77.1%)

BMI, kg/m2

29.72 ± 7.52

Age of onset, year

23.15 ± 13.68

Aura

61 (34.9%)

Family history of headache

124 (70.9%)

Baseline headache days

 Total number of headache days

25.85 ± 5.73

 Number of severe headache days

15.20 ± 7.96

Headache location

 Frontal

73 (41.7%)

 Temporoparietal

51 (29.1%)

 Occipitonuchal

28 (16.0%)

 Holocephalic

23 (13.1%)

  1. Data presented as mean ± SD, unless otherwise stated