OBJECTIVE Nonsuicidal self-injury (NSSI) is a major public health issue. Despite increased research efforts in clinical samples, we still have little understanding of the short-term correlates, predictors, and targets of NSSI among treatment-seeking individuals. The present study was designed to (a) evaluate how suicidal thoughts, interpersonal difficulties, hopelessness, and affective states are associated with same-day and next-day NSSI; (b) identify which factors may be effective targets in treatment through network modeling. METHOD Data from 1,265 psychiatric inpatients who self-injured throughout their visit to a psychiatric hospital self-reported their suicidal ideation, negative affect, and positive affect on a daily basis (in total 36,345 prospective reports). An additional 632 patients were also surveyed regarding feelings of hopelessness, wish to live, and interpersonal difficulties. Using multilevel structural equation modeling, we examined contemporaneous and time-lagged associations with NSSI. Multilevel network analyses assessed interconnectedness of daily predictors and were compared with a matched sample of 1,265 patients who did not self-injure during their stay. RESULTS Increases in suicidal ideation were associated with increased probability of same-day and next-day self-injury, and an inverse relationship was observed for wish to live. Increases in positive affect were also significantly associated with decreased probability of next-day self-injury. Perceived burdensomeness had high centrality in network models, particularly among patients who self-injured, indicating it is susceptible to activation and directly associated with all predictors. CONCLUSIONS Routine monitoring may improve prediction of when a patient is at short-term risk to self-injure and provides person-specific data that can assist in targeting risk and protective factors during treatment. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

中文翻译：

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住院患者非自杀性自伤的每日预测：自杀念头、人际关系困难、绝望和情感的作用。

目的 非自杀性自伤 (NSSI) 是一个主要的公共卫生问题。尽管对临床样本的研究工作有所增加，但我们对寻求治疗的个体中 NSSI 的短期相关因素、预测因素和目标仍然知之甚少。本研究旨在 (a) 评估自杀念头、人际关系困难、绝望和情感状态如何与当天和第二天的 NSSI 相关；(b) 通过网络建模确定哪些因素可能是治疗的有效目标。方法 来自 1,265 名在精神病院就诊过程中自伤的精神病住院患者的数据每天自我报告他们的自杀意念、消极情绪和积极情绪（总共 36,345 份前瞻性报告）。还对另外 632 名患者进行了关于绝望感、求生欲和人际关系困难的调查。使用多级结构方程模型，我们检查了与 NSSI 的同期和滞后关联。多层次网络分析评估了每日预测因素的相互关联性，并与 1,265 名在住院期间没有自伤的患者的匹配样本进行了比较。结果 自杀意念的增加与当天和次日自残概率的增加有关，并且观察到与希望生存的负相关关系。积极情绪的增加也与次日自残概率的降低显着相关。感知负担在网络模型中具有很高的中心性，特别是在自伤的患者中，表明它容易被激活并与所有预测因子直接相关。结论 常规监测可以提高对患者何时处于短期自伤风险的预测，并提供有助于在治疗期间确定风险和保护因素的个人数据。（PsycInfo 数据库记录 (c) 2023 APA，保留所有权利）。