Table 3 Carer-reported prevalence (percentage and 95% CI) of headache for males and females, by cohort and age group
Age (years) | Wave 4 | Wave 5 | Wave 6 | Wave 7 |
|---|---|---|---|---|
Male | ||||
 10–11 | 6.4 (5.4, 7.6) |  | 4.6 (3.7, 5.8) |  |
 12–13 |  | 6.2 (5.2, 7.4) |  | 5.2 (4.0, 6.6) |
 14–15 |  |  | 4.3 (3.4, 5.6) |  |
 16–17 |  |  |  | 6.1 (5.0, 7.5) |
Female | ||||
 10–11 | 6.6 (5.5, 7.9) |  | 5.4 (4.2, 6.8) |  |
 12–13 |  | 7.4 (6.2, 8.8) |  | 7.3 (5.8, 9.0) |
 14–15 |  |  | 8.7 (7.3, 10.3) |  |
 16–17 |  |  |  | 13.2 (11.5, 15.0) |