Demographic characteristics and comorbidities in patients with and without migraine
| Variable | Migraine | P value | |
| No | Yes | ||
| n=69 680 | n=17 420 | ||
| Sex | n (%) | n (%) | 0.99 |
| Female | 51 176 (73.4) | 12 794 (73.4) | |
| Male | 18 504 (26.6) | 4626 (26.6) | |
| Age, mean (SD) | 44.2 (15.6) | 44.5 (15.3) | 0.04* |
| Stratify age | 0.99 | ||
| ≤49 | 46 768 (67.1) | 11 692 (67.1) | |
| 50–65 | 14 940 (21.4) | 3735 (21.4) | |
| 65+ | 7972 (11.4) | 1993 (11.4) | |
| Comorbidity | |||
| Diabetes | 3567 (5.12) | 975 (5.60) | 0.01 |
| Hypertension | 12 563 (18.0) | 4551 (26.1) | <0.001 |
| Hyperlipidaemia | 8278 (11.9) | 3187 (18.3) | <0.001 |
| Depression | 2019 (2.90) | 1851 (10.6) | <0.001 |
| Anxiety | 4366 (6.27) | 3724 (21.4) | <0.001 |
| Sleep disorder | 9469 (13.6) | 6976 (40.1) | <0.001 |
| CAD | 5560 (7.98) | 2449 (14.1) | <0.001 |
| CFS | 71 (0.10) | 41 (0.24) | <0.001 |
| IBS | 2106 (3.02) | 1224 (7.03) | <0.001 |
Χ2 test. *two-sample t-test.
CAD, coronary artery disease; CFS, chronic fatigue syndrome; IBS, irritable bowel syndrome.