Objective: Our objective was to study the prevalence of different head
ache types, characterizations, and triggers of headache in Finnish chi
ldren starting school. Methods: Questionnaires were sent to 1,132 fami
lies with 6-year-old children. Children with headache disturbing their
daily activities (n = 96) and an asymptomatic control group of childr
en (n = 96) participated in a clinical interview and examination. Resu
lts: Children with headache had significantly more bruxism (odds ratio
[OR], 1.9; 95% CI, 1.0 to 3.4), tenderness in the occipital muscle in
sertion areas (OR, 4.8; 95% CI, 1.8 to 12.7), and tenderness in the te
mporomandibular joint areas (OR, 2.8; 95% CI, 1.3 to 6.0). They also h
ad more travel sickness (OR, 3.4; 95% CI, 1.7 to 6.7) than control chi
ldren. Eating ice cream (OR, 5.3; 95% CI, 1.4 to 20.3), fear (OR, 3.7;
95% CI, 1.2 to 11.2), and anxiety (OR, 3.2; 95% CI, 1.0 to 10.8) trig
gered headache more often in migraineurs than in children with tension
-type headache. Children with migraine also reported more frequently a
bdominal (OR, 5.6; 95% CI, 1.7 to 18.1) and other (OR, 3.5; 95% CI, 1.
2 to 9.8) pain concurrently with headache, and they used medication fo
r pain relief more often (OR, 3.1; 95% CI, 1.0 to 9.5). Conclusions: H
eadache classification in children may be improved by palpation of occ
ipital muscle insertions and temporomandibular joint areas, and by dis
cerning a history of triggering events and concurrent symptoms.