Table 1.

Patient and headache characteristics

CharacteristicsClinical diagnosis of migraineIHS diagnosis of migraine
IHS = International Headache Society.
No. of patients441371
No. of trials724611
Sex
Male187162
Female254209
Age at trial, y
<665
6–11253215
12–18390378
>185213
Frequency at time of trial/mo
<6385331
6–12150135
13–248877
>2410168
Nausea, %56.164.6
Vomiting, %24.331.6
Photophobia, %76.681.3
Phonophobia, %64.870.3
Aggravated by physical activity, %67.377.8