TABLE 4.

Descriptive statistics of characteristics of the 15 patients treated with Olanzapine

Female n (%)	12 (80%)
Age (Mean ± SD)	48.66 ± 11.18
Headache history (Mean ± SD)	30.80 ± 13.98
Baseline frequency of attacks (Mean ± SD)	24.53 ± 7.75
Frequency of attacks after three months (Mean ± SD)	14.33 ± 8.25	p = .002
Headache pain intensity (Mean NRS ± SD)	8.80 ± 1.14
Headache Pain intensity after three months (Mean NRS ± SD)	7.27 ± 1.75	p = .003
Patients with 2‐hours pain free to triptans n (%)	13 (87%)

Abbreviations: SD, standard deviation; NRS, numerical rating scale.