Document Classification

Section Type: RESULTS

Text: At the end of phase I, group A, but not group B, demonstrated significant improvement in mean (standard error of the mean [SEM]) headache frequency (3. 0 per month [0. 3] versus 12. 0 per month [1. 7]), duration (13. 3 hours [3. 5] versus 32. 0 hours [6. 2]), pain intensity (32. 8 mm [4. 1] versus 47. 5 mm [2. 7]), pain threshold (right side, 2. 9 kg/second [0. 1] versus 0. 9 kg/second [0. 1] ; left side, 2. 4 kg/second [0. 1] versus 1. 1 kg/second [0. 1]), headache disability score (6. 0 [1. 0] versus 16. 3 [1. 6]), and sickness impact score (288. 7 [48. 0] versus 687. 1 [77. 2]).