Methods
Sample and setting
Children suffering from chronic AD for more than six months were recruited from the four tertiarylevel
hospitals located in metropolitan Seoul Korea. Children aged 7–13 years were eligible for
inclusion if (1) they were under either systemic or topical treatment at the time of the study; (2)
they did not have a chronic condition other than atopic disease (i.e. allergic rhinitis or asthma);
(3) they were able to understand and fill out the questionnaire; and (4) they agreed to participate
in the study. After excluding two questionnaires with insufficient responses, reports from 102
children were finally included for the analysis.