Abstract:Objective To explore the related factors of repeated wheezing in children under 3 years old. Methods A total of 523 children under 3 years old with asthma were enrolled in our hospital from June 2015 to June 2017, who were divided into repeated wheezing group (wheezing times ≥ 3) and control group (wheezing times ≤ 2 times). Clinical data of the children were retrospectively analyzed and single factor and Logistic multivariate analysis were utilized to study related factors towards repeated wheezing. Results The single factor analysis revealed that children's mode of delivery, exclusive breastfeeding time, family history of allergies, other personal allergies, serum immunoglobulin E (IgE), the number of cold, blood eosinophils Eosinophils (EOS), gestational age, weight gain, history of food allergy, eczema, passive smoking, pet raising and pneumonia between the groups were statistically significant (P < 0.05). Logistic multivariate analysis revealed that cesarean section, exclusive breastfeeding time ≤ 4 months, a family history of allergies, there are other personal history of allergies, serum IgE > 60 IU/ml, the number of colds > 6 times, blood EOS >5%, Eczema, passive smoking, pets and pneumonia are risk factors of repeated wheezing in children under 3 years old (P < 0.05). Conclusions Children with repeated wheezing under 3 years old with risk factors should be monitored to reduce its incidence.