Table 5 Construct validity for frequency of headaches, MIDAS, and PH9 categorical scores
From: Development of a self-reporting questionnaire, BURMIG, to evaluate the burden of migraine
Whole population sample | Healthy subjects | |||||||
|---|---|---|---|---|---|---|---|---|
Primary care | Pain clinic | General population sample | All | Chi square | General population sample | All | Chi Square | |
N mean (days/month of headaches) | ||||||||
Less than 1 day | 0 (0%) | 0 (0%) | 2 (2.15%) | 2 | 1 (4.55%) | 1 | ||
1–3 days | 5 (29.41%) | 6 (30%) | 20 (21.51%) | 31 | 7 (31.82%) | 18 | ||
4–9 days | 6 (35.29%) | 2 (10%) | 42 (45.16%) | 50 | 9 (40.91%) | 17 | ||
10–14 days | 3 (17.65%) | 3 (15%) | 18 (19.35%) | 24 | 4 (18.18%) | 10 | ||
>15 days | 3 (17.65%) | 9 (45%) | 11 (11.83%) | 23 | 1 (4.55%) | 13 | ||
Total | 17 (13.08%) | 20 (15.38%) | 93 (71.54%) | 130 | 0.0238 | 22 (37.29%) | 59 | 0.0629 |
MIDAS score | ||||||||
Minimal or infrequent disability | 3 (23.08%) | 4 (23.53%) | 14 (19.44%) | 21 | 9 (47.37%) | 16 | ||
Mild or infrequent disability | 0 (0%) | 0 (0%) | 10 (13.89%) | 10 | 5 (26.32%) | 5 | ||
Moderate disability | 6 (46.15%) | 2 (11.76%) | 18 (25%) | 26 | 4 (21.05%) | 12 | ||
Severe disability | 4 (30.77%) | 11 (64.71%) | 30 (41.67%) | 45 | 1 (5.26%) | 16 | ||
Total | 13 (12.75%) | 17 (16.67%) | 72 (70.59%) | 102 | 0.159 | 19 (38.78%) | 49 | 0.0005 |
Depressive disorder | ||||||||
No | 14 (82.35%) | 17 (85%) | 86 (92.47%) | 117 | 22 (100%) | 53 | ||
Yes | 3 (17.65%) | 3 (15%) | 7 (7.53%) | 13 | 0 (0%) | 6 | ||
Total | 17 (13.08%) | 20 (15.38%) | 93 (71.54%) | 130 | 0.3179 | 22 (37.29%) | 59 | |