Objective:The aim of this study is to investigate the incidence of allergy-related symptoms and the associated risk factors.Method:There were 205 children aged 3to 4years old recruited for this study.Questionnaires on skin,wheezing and rhinitis symptoms were answered,and total IgE and specific IgE in serum against house dust mite extracts were tested.Logistic regression analysis with which we calculated odds ratio(OR)and95% confidence interval(95%CI)were used for risk factor analysis.Result:Questionnaire re...