From: The coexistence of psychiatric and gastrointestinal problems in children with restrictive eating in a nationwide Swedish twin study
% of co-twins with somatic problems
% of co-twins with only somatic problemsa
% of co-twin without somatic or psychiatric problemsb
Boys n = 35
24.3
5.3
39.3
Girls n = 50
26.3
6.7
43.3