Children with autism spectrum disorder (ASD) are at elevated risk of suicidal ideation, particularly those with comorbid anxiety disorders and/or obsessive-compulsive disorder (OCD). We investigated the risk factors associated with suicidal ideation in 166 children with ASD and comorbid anxiety disorders/OCD, and the unique contribution of externalizing behaviors. Suicidal ideation was reported in the child sample by 13% of parents. Controlling for child age, sex, and IQ, perceived loneliness positively predicted the likelihood of suicidal ideation. In addition, externalizing behaviors positively predicted suicidal ideation, controlling for all other factors. Reliance on parental report to detect suicidal ideation in youth with ASD is a limitation of this study. Nonetheless, these findings highlight the importance of assessing and addressing suicidal ideation in children with ASD and comorbid anxiety disorders/OCD, and more importantly in those with elevated externalizing behaviors and perceptions of loneliness.

患有自闭症谱系障碍 (ASD) 的儿童自杀意念的风险较高，尤其是那些患有焦虑症和/或强迫症 (OCD) 的儿童。我们调查了 166 名患有 ASD 和合并焦虑症/强迫症的儿童的自杀意念相关的危险因素，以及外化行为的独特贡献。13% 的父母在儿童样本中报告了自杀意念。控制儿童年龄、性别和智商后，感知到的孤独感正向预测自杀意念的可能性。此外，外化行为积极预测自杀意念，控制所有其他因素。依赖父母报告来检测 ASD 青少年的自杀意念是本研究的一个局限。尽管如此，