From: The prevalence of headache disorders in children and adolescents in Mongolia: a nationwide schools-based study
Variable
Pupils affected
n
%
School locality
urban
1831
42.9
semi-rural
873
20.5
rural
1562
36.6
Pupils’ home-income*
“higher”
1378
32.3
“middle”
2015
47.2
“lower”
Home proximity*
“mostly close”
2519
59.0
“many distant”
1747
41.0