Abstract：Objective To study the clinical features and risk factors of co-morbid tic disorder（TD) in children with attention deficit hyperactivity disorder（ADHD). Methods A total of 312 children with ADHD were involved in this study. Subtypes of co-morbid TD, incidences of TD in different subtypes of ADHD（ADHD-I, ADHD-HI and ADHD-C) were observed. Thirteen potential factors influencing the comorbidity rate of TD in ADHD were evaluated by univariate analysis and multiple logistic regression analysis. Results Forty-two of 312 children with ADHD suffered from co-morbid TD（13.5%). Comorbidity rate of TD in children with ADHD-C（24.1%) was significantly higher than in those with ADHD-HI（10.9%) and ADHD-I（8.8%)（POR=7.000, POR=2.564,PConclusion The incidence of co-morbid TD in children with ADHD is influenced by many factors, and early interventions should be performed based on the main risk factors.
ZHOU Ke-Ying,XIAO Zhi-Hui,CHEN Yan-Zhao et al. Clinical features and risk factors of co-morbid tic disorder in children with attention deficit hyperactivity disorder[J]. CJCP, 2014, 16(9): 892-895.
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