It is not known how emotion regulation deficits and strategies may differentially relate to nonsuicidal self-injury (NSSI) and suicide ideation in samples of community-based adolescents. The current study examined emotion regulation using comprehensive multi-method assessment to identify which specific deficits are uniquely related to NSSI and suicide ideation in a sample of high school students. Regarding specific deficits, it was expected that lack of emotional awareness, lack of access to emotion regulation strategies, poor cognitive reappraisal, and poorer automatic emotion processing would uniquely associate with past-year NSSI engagement. It was also predicted that lack of access to strategies, lack of impulse control, lack of awareness, and nonacceptance of emotion would uniquely associate with past-year presence of suicide ideation and suicide ideation severity. The sample included 696 adolescents (54.8% female; ages 14–17; mean age = 15.5) recruited from public high schools. Self-report measures were administered assessing suicide ideation, NSSI engagement, dimensions of emotion regulation, and automatic emotion processing (Emotion Stroop). Emotion suppression was the only unique and significant predictor of past-year NSSI engagement, and lack of access to emotion regulation strategies was the strongest predictor of both past-year presence of suicide ideation and recent suicide ideation severity when accounting for all deficits in the same model. Acquiring emotion regulation skills during the period of adolescence has great potential to buffer from occurrence of NSSI and severity of suicide ideation.

目前尚不清楚情绪调节缺陷和策略如何与社区青少年样本中的非自杀性自伤 (NSSI) 和自杀意念有差异关联。目前的研究使用综合多方法评估来检查情绪调节，以确定哪些特定缺陷与高中生样本中的 NSSI 和自杀意念唯一相关。关于特定的缺陷，预计缺乏情绪意识、缺乏情绪调节策略、认知重新评估不佳以及自动情绪处理较差将与过去一年的 NSSI 参与度独特相关。也有人预测，缺乏策略，缺乏冲动控制，缺乏意识，不接受情绪与过去一年的自杀意念和自杀意念的严重程度有着独特的联系。样本包括从公立高中招募的 696 名青少年（54.8% 为女性；年龄 14-17 岁；平均年龄 = 15.5 岁）。采取自我报告措施评估自杀意念、NSSI 参与度、情绪调节维度和自动情绪处理（情绪 Stroop）。情绪抑制是过去一年 NSSI 参与的唯一独特且重要的预测因素，而缺乏情绪调节策略是过去一年存在自杀意念和最近自杀意念严重程度的最强预测因素，同时考虑到所有缺陷模型。