Black Dog Institute, The University of New South Wales, Randwick, NSW 2033, Australia.
J Affect Disord. 2013 Jan 25;144(3):225-34. doi: 10.1016/j.jad.2012.07.002. Epub 2012 Aug 3.
Joiner's Interpersonal Theory of Suicide (Van Orden et al., 2010; Joiner, 2005) predicts that suicide ideation is strongest in those experiencing both high perceived burdensomeness and thwarted belongingness, and that the combination of suicide ideation and acquired capability for suicide is critical in the development of suicide plans and attempts. However, few datasets exist which allow the examination of these predictions. The present study aimed to test predictions from the model in a population-based cohort.
a survey was completed by 6133 participants from the PATH Through Life Project. Scales measuring perceived burdensomeness, thwarted belongingness, hopelessness, capability to self-injure, ideation, plans and attempts were developed using existing items. Regression models were used to predict the outcomes of ideation and of plans/attempts.
consistent with the Interpersonal Theory, interactions were found between perceived burdensomeness and thwarted belongingness predicting ideation, and interactions of capability and ideation for plans/attempts. However, some predictions of the theory were not fulfilled. Nevertheless, the Interpersonal Theory explained more variance than epidemiological models using mental disorders as predictors. Age differences were evident, with models of older cohorts accounting for less variance. Gender models suggested thwarted belongingness was a stronger predictor of ideation in males than females.
while the fit of the factors assessing the Interpersonal Theory was adequate, the findings will need to be confirmed using previously developed scales of these constructs.
predictive models of suicide need to take into account multiple risk factors, gender differences and changes in associations over the life span.
乔伊纳的人际关系自杀理论（Van Orden 等人，2010 年；乔伊纳，2005 年）预测，当个体同时经历高感知负担和受挫归属感时，自杀意念最强，并且自杀意念和获得自杀能力的结合对于自杀计划和尝试的发展至关重要。然而，很少有数据集允许检验这些预测。本研究旨在基于人群队列检验该模型的预测。
PATH Through Life 项目的 6133 名参与者完成了一项调查。使用现有的项目开发了衡量感知负担、受挫归属感、绝望感、自我伤害能力、意念、计划和尝试的量表。回归模型用于预测意念和计划/尝试的结果。
与人际关系理论一致，发现感知负担和受挫归属感之间的相互作用预测意念，以及能力和意念之间的相互作用预测计划/尝试。然而，该理论的一些预测并未得到满足。尽管如此，人际关系理论比使用精神障碍作为预测因子的流行病学模型解释了更多的方差。年龄差异明显，年龄较大队列的模型解释的方差较小。性别模型表明，受挫归属感对男性的意念预测作用强于女性。
尽管评估人际关系理论的因素的拟合度良好，但需要使用先前开发的这些结构的量表来验证这些发现。
自杀的预测模型需要考虑多个风险因素、性别差异和整个生命周期中关联的变化。
