Table 1.
Characteristics of the cohort.
| Variables | Comparison (n = 16,628) | Migraine (n = 4157) | p Value |
|---|---|---|---|
| Sex | 1000 | ||
| Men | 3772 (22.7%) | 943 (22.7%) | |
| Women | 12,856 (77.3%) | 3214 (77.3%) | |
| Ages (years) | 1000 | ||
| <45 | 7672 (46.1%) | 1918 (46.1%) | |
| 45–64 | 6376 (38.3%) | 1594 (38.3%) | |
| >64 | 2580 (15.5%) | 645 (15.5%) | |
| Residence | 1000 | ||
| Seoul | 3264 (19.6%) | 816 (19.6%) | |
| Second area | 3880 (23.3%) | 970 (23.3%) | |
| Third area | 9484 (57.0%) | 2371 (57.0%) | |
| Household income | 1000 | ||
| Low (0–30%) | 3676 (22.1%) | 919 (22.1%) | |
| Middle (30–70%) | 6104 (36.7%) | 1526 (36.7%) | |
| High (70–100%) | 6848 (41.2%) | 1712 (41.2%) | |
| CCI | 1000 | ||
| 0 | 9880 (59.4%) | 2470 (59.4%) | |
| 1 | 3604 (21.7%) | 901 (21.7%) | |
| ≥2 | 3144 (18.9%) | 786 (18.9%) |
Comparison, subjects without migraines; Seoul, the largest metropolitan area; second area, other metropolitan cities; third area, other areas; CCI, Charlson comorbidity index.