Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD 4076, Australia.
Schizophr Res. 2011 Nov;132(2-3):197-202. doi: 10.1016/j.schres.2011.07.012. Epub 2011 Aug 3.
Delusional-like experiences (DLEs) are common in the general population. Whilst it is well known that psychotic disorders increase the risk of suicide, it is unclear if DLEs are also associated with suicidal thoughts and behaviour. This study aims to explore these variables in a large population-based sample.
Participants were drawn from a national survey of mental health (n=8841) in Australia. The Composite International Diagnostic Interview was used to identify DLEs, psychiatric disorders, and information related to suicidal ideation, suicide plan and suicide attempts. We examined the relationship between DLEs and suicidal ideation, plans and attempts using logistic regression, adjusted for a range of potentially confounding variables.
8.4% of subjects endorsed one or more DLEs. 12.9% subjects reported suicidal ideation, 3.8% suicidal plans, and 3.0% a suicide attempt at some point in their lives. Those with any DLE were about two to four times as likely to report suicidal ideation, plans or attempts. There was a dose response relationship between DLEs and endorsement of suicide-related items.
DLEs are common in the general population and appear to be independently associated with suicidal thoughts and behaviour. DLE may provide a marker of vulnerability to suicide, and thus could be of value in future suicide prevention research.
类似妄想的体验（DLE）在普通人群中很常见。虽然众所周知，精神病障碍会增加自杀的风险，但 DLE 是否也与自杀意念和行为有关尚不清楚。本研究旨在在一个大型基于人群的样本中探讨这些变量。
参与者来自澳大利亚一项关于心理健康的全国性调查（n=8841）。使用复合国际诊断访谈来确定 DLE、精神障碍以及与自杀意念、自杀计划和自杀尝试相关的信息。我们使用逻辑回归检查了 DLE 与自杀意念、计划和尝试之间的关系，调整了一系列潜在的混杂变量。
8.4%的受试者表示存在一种或多种 DLE。12.9%的受试者报告有自杀意念，3.8%有自杀计划，3.0%在他们的生活中的某个时候有过自杀尝试。有任何 DLE 的人报告自杀意念、计划或尝试的可能性是其两倍到四倍。DLE 与自杀相关项目的认可之间存在剂量反应关系。
DLE 在普通人群中很常见，似乎与自杀意念和行为独立相关。DLE 可能是自杀易感性的标志，因此可能对未来的自杀预防研究有价值。
