Table 1 Characteristics of study participants at baseline (N = 1,384)
From: Validation of the Headache Impact Test (HIT-6) in patients with chronic migraine
Characteristics | Study 1 | Study 2 | ||
|---|---|---|---|---|
(n = 679) | (n = 705) | |||
Age (years), mean (SD) | 41.7 | (10.5) | 41.0 | (10.6) |
Gender, n (% female) | 594 | (87.5) | 602 | (85.4) |
Race | ||||
Caucasian | 614 | (90.4) | 633 | (89.8) |
Black | 30 | (4.4) | 44 | (6.2) |
Hispanic | 29 | (4.3) | 17 | (2.4) |
Asian | 3 | (0.4) | 4 | (0.6) |
Other | 3 | (0.4) | 7 | (1.0) |
Migraine Characteristics | ||||
Years since frequent migraine onset, mean (SD) | 20.4 | (13.0) | 18.0 | (12.1) |
Number of headache days during the 28 day baseline period, mean (SD) | 19.9 | (3.7) | 19.8 | (3.6) |
Number of migraine days in a 28-day period, mean (SD) | 16.5 | (5.8) | 16.3 | (5.8) |
Number of migraine/probable migraine days in a 28-day period, mean (SD) | 19.1 | (4.0) | 18.9 | (4.0) |
Cumulative hours of headache in a 28-day period, mean (SD) | 285.3 | (114.3) | 291.6 | (119.6) |
HIT-6a, mean (SD) | 65.6 | (4.0) | 65.3 | (4.4) |
MSQb | ||||
Role function - preventive | 55.4 | (21.0) | 56.7 | (21.9) |
Role function - restrictive | 37.8 | (16.8) | 39.4 | (17.0) |
Emotional function | 40.3 | (24.1) | 44.1 | (24.8) |