From: Validation of the Headache Impact Test (HIT-6) in patients with chronic migraine
Decrease from baseline in headache days at week 24 | ||||||
---|---|---|---|---|---|---|
Mean change in HIT-6 | SD | n | SRM | F-valuea | F-valueb | |
Study 1 | ||||||
≥50% | −6.9 | 7.63 | 255 | −0.90 | ||
≥30% to <50% | −3.3 | 5.18 | 141 | −0.64 | ||
<30% | −0.7 | 4.23 | 283 | −0.17 | 148.81* | 148.33* |
Study 2 | ||||||
≥50% | −6.9 | 8.07 | 291 | −0.86 | ||
≥30% to <50% | −2.9 | 5.60 | 131 | −0.52 | ||
<30% | −0.7 | 4.01 | 283 | −0.18 | 140.01* | 139.62* |
Decrease from Baseline in Cumulative Hours of Headache Occurring on Headache Days at Week 24 | ||||||
Mean Change in HIT-6 | SD | n | SRM | F-value a | F-value b | |
Study 1 | ||||||
≥50% | −6.9 | 7.50 | 269 | −0.92 | ||
≥30% to <50% | −2.6 | 5.24 | 115 | −0.50 | ||
<30% | −0.9 | 4.30 | 295 | −0.21 | 142.06* | 143.15* |
Study 2 | ||||||
≥50% | −6.5 | 8.05 | 319 | −0.81 | ||
≥30% to <50% | −2.2 | 4.64 | 109 | −0.47 | ||
<30% | −0.9 | 4.41 | 277 | −0.20 | 112.72* | 112.07* |