TABLE 1.
Sample characteristics
| Characteristic | Total sample | Episodic headache | Chronic daily headache | Chronic migraine | Chronic tension-type headache |
|---|---|---|---|---|---|
| Total n | 368 | 297 | 71 | 15 (21.1) | 56 (78.9) |
| Age, years, mean ± SD | 11.9±2.3 | 11.5±2.3 | 11.2±2.3 | 10.9±2.0 | 11.3±2.4 |
| Age | |||||
| Children (8–11 years of age) | 197 (53.5) | 156 (52.5) | 40 (56.3) | 8 (53.3) | 32 (57.1) |
| Adolescents (12–17 years of age) | 171 (46.5) | 141 (47.5) | 31 (43.7) | 7 (46.7) | 24 (42.9) |
| Sex | |||||
| Female | 201 (54.6) | 151 (50.8) | 50 (70.4) | 9 (60.0) | 41 (73.2) |
| Male | 167 (45.4) | 146 (49.2) | 21 (29.6) | 6 (40.0) | 15 (26.8) |
| Headache history, months, mean ± SD | 39.3±28.5 | 39.9±27.7 | 36.9±31.7 | 24.2±27.6 | 40.1±32.1 |
Data presented as n (%) unless otherwise indicated