Factors associated with accidental injuries in children with ADHD-combined type: more than a motor problem?

OBJECTIVE: We explored the relationship between accidental injuries, motor impairment, and co-occurring autism spectrum disorder (ASD) symptoms in children with ADHD-combined type (ADHD-CT). METHOD: Participants were 32 male children diagnosed with ADHD-CT and 23 typically developing male children (7-12 years, full scale IQ [FSIQ] > 80). Parents completed a customized questionnaire on the occurrence of accidental injuries (e.g., bruises, cuts) their child experienced in the past 12 months. Motor proficiency was assessed using the Movement ABC-2 (MABC-2). Parents rated motor, ADHD-CT, ASD, and anxiety symptoms. RESULTS: Children with ADHD-CT had significantly increased parent-reported accidental injuries compared with typically developing children. Among children with ADHD-CT, Spearman's rho rank correlations revealed no association between increased accidental injuries and MABC-2 score, but significant associations with increased hyperactivity/impulsivity, ASD, and anxiety symptoms. CONCLUSION: Although these findings require validation, they suggest a need for further research investigating the contribution of co-occurring ASD and anxiety symptoms to accidental injuries in children with ADHD-CT.