Table 1 Symptom burden overall and by headache type (N = 2505)
Headache type | n | Mean frequency (days/4 weeks) | Mean duration (hours) | Estimated proportion of time in ictal state (%) | Mean intensity (scale 1–3)a |
|---|---|---|---|---|---|
All headache (all ages) | 1858 | 3.7 ± 4.5 | 1.6 ± 1.9 | 0.9 | 1.6 ± 0.6 |
ages 7–11 y | 866 | 2.8 ± 3.7 | 1.4 ± 1.8 | 0.6 | 1.6 ± 0.6 |
ages 12–17 y | 992 | 4.5 ± 5.0 | 1.8 ± 2.0 | 1.2 | 1.6 ± 0.6 |
Migraine | 519 | 3.9 ± 3.3 | 2.5 ± 2.5 | 1.5 | 2.0 ± 0.5 |
Tension-type headache | 605 | 3.2 ± 3.0 | 1.8 ± 1.7 | 0.9 | 1.7 ± 0.5 |
Probable medication-overuse headache | 18 | 19.7 ± 4.1 | 3.7 ± 3.2 | 10.9 | 2.2 ± 0.5 |
Other headache on ≥15 days/month | 73 | 18.4 ± 4.3 | 2.5 ± 2.4 | 6.9 | 2.0 ± 0.6 |
Undifferentiated headache | 601 | 1.8 ± 2.2 | 0.5 ± < 0.1 | 0.1 | 1.0 ± < 0.1 |