Abstract: Objective To investigate the incidence of sleep disorders and emotional behavior problems among preschool children in Daxing District, Beijing, and analyze the correlation between them. Methods A stratified cluster sampling method was used to investigate the demographic characteristics, sleep disorders, and emotional behavior problems of preschool children in 16 kindergartens in Daxing District, Beijing. The descriptive analysis was used to analyze the emotional behavior problems of this population, Spearman rank correlation analysis and multivariate binary logistic regression analysis were used to analyze the correlation between sleep disorders and emotional behavior problems. Results The results showed that there were 392 children with sleep disorder, accounting for 29.21%, and 127 children with emotional behavior problems, accounting for 9.46%. Correlation analysis showed that sleep disturbance was correlated with emotional problems （r=0.219） and hyperactivity problems （r=0.172） （both P<0.05）. Sleep rhythm disturbance was correlated with emotional problems （r=0.245） and prosocial behavior problems （r=0.064） （both P<0.05）. Abnormal sleep was correlated with emotional problems （r=0.293）, hyperactivity problems （r=0.297）, peer interaction problems （r=-0.073）, and prosocial behavior problems （r=0.167） （all P<0.05）. Multivariate logistic regression analysis showed that sleep disturbance （OR=5.733）, sleep rhythm disturbance （OR=5.909）, and abnormal sleep （OR=12.273） were the influential factors of emotional behavior problems in preschool children. Conclusion The incidence of sleep disorders and emotional behavior problems of preschool children in Daxing District, Beijing is high, and sleep disorders are important factors affecting the emotional behavior problems of preschool children.

Key words: Preschool child, Sleep disorder, Emotion, Behavior