Table 4 Carer-reported headache frequency (percentage and 95% CI) for adolescents with recurrent headache, collapsed across cohorts
| Â | Headache frequency | |||
|---|---|---|---|---|
Rarely/ A few times per year | Few times each month/ Some days of the week | Most days of the week / Daily | Â | |
Age (years) | p | |||
Male | ||||
 10–11 (n = 207) | 9.9 (6.3, 15.3) | 78.6 (71.7, 84.1) | 11.6 (7.5, 17.4) | 0.013 |
 12–13 (n = 205) | 16.3 (11.2, 23.0) | 77.7 (70.3, 83.7) | 6.1 (3.0, 11.8) | |
 14–15 (n = 71) | 21.6 (13.0, 33.8) | 68.4 (55.6, 78.9) | 10.1 (4.9, 19.5) | |
 16–17 (n = 94) | 27.3 (18.5, 38.1) | 62.2 (50.9, 72.3) | 10.5 (5.3, 19.7) | |
Female | ||||
 10–11 (n = 218) | 13.6 (9.2, 19.7) | 81.4 (74.7, 86.7) | 5.0 (2.7, 9.2) | < 0.001 |
 12–13 (n = 246) | 22.7 (16.9, 28.5) | 71.8 (65.1, 77.7) | 6.2 (3.4, 10.8) | |
 14–15 (n = 141) | 17.5 (11.4, 25.9) | 72.4 (63.6, 79.8) | 10.1 (6.0, 16.5) | |
 16–17 (n = 191) | 36.9 (29.7, 44.7) | 54.5 (46.8, 62.1) | 8.6 (4.7, 15.3) | |