Table 1. Baseline demographic factors and comorbidity of study participants according to tension-type headache status.
| Characteristics | Non-TTH group N = 49236 |
TTH group N = 12309 |
p-value | ||
|---|---|---|---|---|---|
| n | % | n | % | ||
| Sex | > 0.99 | ||||
| Women | 32872 | 66.8 | 8218 | 66.8 | |
| Men | 16364 | 33.2 | 4091 | 33.2 | |
| Age, years | > 0.99 | ||||
| 20-44 | 20976 | 42.6 | 5244 | 42.6 | |
| 45-64 | 19372 | 39.4 | 4843 | 39.4 | |
| ≥ 65 | 8888 | 18.1 | 2222 | 18.1 | |
| Mean (SD)† | 48.8 | (15.6) | 49.1 | (15.4) | 0.13 |
| Comorbidity | |||||
| Diabetes | 4243 | 8.62 | 1265 | 10.3 | <0.001 |
| Hyperlipidemia | 8039 | 16.3 | 3206 | 26.1 | <0.001 |
| Hypertension | 12235 | 24.9 | 4560 | 37.1 | <0.001 |
| IHD | 6523 | 13.3 | 2803 | 22.8 | <0.001 |
| Dementia | 356 | 0.72 | 98 | 0.80 | 0.43 |
| Depression | 1613 | 3.28 | 1362 | 11.1 | <0.001 |
| Migraine | 954 | 1.94 | 1341 | 10.9 | <0.001 |
| Stroke | 1075 | 2.18 | 338 | 2.75 | <0.001 |
| CKD | 583 | 1.18 | 161 | 1.31 | 0.28 |
| Head injury | 1957 | 3.97 | 978 | 7.95 | <0.001 |
TTH, tension-type headache; SD, standard deviation; IHD, ischemic heart disease; CKD, chronic kidney disease.
† Student's t-test.