Table 1 Proportion of perceived and observed risk factors (with 95 % confidence intervals) and prevalence ratio between perceived and observed risk factors in adolescents with headache
Trigger (n) | Prevalence of perceived triggers among adolescents with headache (%) | Prevalence of observed triggers among adolescents with headache (%) | Prevalence ratio between perceived and observed triggers among adolescents with headache |
|---|---|---|---|
Stress (1,047) | 47.6 (44.5–50.6) | 22.5 (20.0–25.2) | 2.1 |
Too much alcohol (1,028) | 6.6 (5.2–8.3) | 55.5 (52.4–58.6) | 0.1 |
Muscle pain (1,047) | 3.5 (2.5–4.8) | 51.2 (48.1–54.3) | 0.1 |
Physical inactivity (968) | 0.3 (0.1–0.8) | 35.6 (32.6–38.8) | 0.01 |
Consumption of coffee (1,021) | 0 | 13.6 (11.6–15.9) | 0 |