Patient characteristic | Cohort | Total (N = 977) | p-value | |
---|---|---|---|---|
Episodic migraine (N = 923) | Chronic migraine (N = 54) | |||
Age (years), mean (SD) | 44.4 (14.6) | 46.3 (13.2) | 44.5 (14.5) | 0.351a |
Female, n (%) | 711 (77.0) | 43 (79.6) | 754 (77.2) | 0.658b |
Body mass index (kg/m2), mean (SD) | 21.7 (3.3) | 21.9 (3.3) | 21.7 (3.3) | 0.627a |
Smoking status, n (%) | Â | Â | Â | 0.200b |
 Current smoker | 105 (11.8) | 9 (17.3) | 114 (12.1) |  |
 Ex-smoker | 90 (10.1) | 2 (3.8) | 92 (9.7) |  |
 Has never smoked | 698 (78.2) | 41 (78.8) | 739 (78.2) |  |
No. of migraine headache days (average per month), mean (SD) | 3.0 (2.8) | 10.8 (7.8) | 3.4 (3.8) | < 0.001a |
Also had tension-type headaches, n (%) | 194 (21.0) | 21 (38.9) | 215 (22.0) | 0.002b |
Also had medication-overuse headaches, n (%) | 36 (3.9) | 14 (25.9) | 50 (5.1) | < 0.001c |
Home circumstances, n (%) | ||||
 Lives with spouse/partner | 515 (57.7) | 34 (66.7) | 549 (58.2) | 0.205b |
 Lives with other family | 204 (22.8) | 15 (29.4) | 219 (23.2) | 0.280b |
 Lives with friends | 1 (0.1) | 0 | 1 (0.1) | 1.000c |
 Lives alone | 190 (21.3) | 5 (9.8) | 195 (20.7) | 0.049b |
Employment status, n (%) | Â | Â | Â | 0.131c |
 Full-time | 433 (48.0) | 23 (45.1) | 456 (47.8) |  |
 Part-time | 126 (14.0) | 3 (5.9) | 129 (13.5) |  |
 Student | 35 (3.9) | 1 (2.0) | 36 (3.8) |  |
 Unemployed | 104 (11.5) | 8 (15.7) | 112 (11.8) |  |
 Retired | 12 (1.3) | 3 (5.9) | 15 (1.6) |  |
 Homemaker | 187 (20.7) | 13 (25.5) | 200 (21.0) |  |
 Other | 5 (0.6) | 0 | 5 (0.5) |  |
Patient with any comorbidity, n (%) | 455 (49.3) | 29 (53.7) | 484 (49.5) | 0.529b |
Total no. of comorbidities (max = 37)d, mean (SD) | 1.8 (1.2) | 2.1 (1.8) | 1.8 (1.3) | 0.378a |