Penney Stephanie R, Prosser Aaron, Simpson Alexander I F
Centre for Addiction and Mental Health, Toronto, Canada.
University of Toronto, Toronto, Canada.
Crim Behav Ment Health. 2018 Aug;28(4):335-349. doi: 10.1002/cbm.2069. Epub 2018 Jan 16.
Developmental typologies regarding age of onset of violence and offending have not routinely taken account of the role of serious mental illness (SMI), and whether age of onset of offending in relation to onset of illness impacts on the manifestation of offending over the life course.
To test whether forensic psychiatric patients can be classified according to age of onset of SMI and offending, and, if so, whether subtypes differ by sex.
Details of all 511 patients enrolled into a large forensic mental health service in Ontario, Canada, in 2011 or 2012 were collected from records.
A latent profile analysis supported a 2-class solution in both men and women. External validation of the classes demonstrated that those with a younger age onset of serious mental illness and offending were characterised by higher levels of static risk factors and criminogenic need than those whose involvement in both mental health and criminal justice systems was delayed to later life.
Our findings present a new perspective on life course trajectories of offenders with SMI. While analyses identified just two distinct age-of-onset groups, in both the illness preceded the offending. The fact that our sample was entirely drawn from those hospitalised may have introduced a selection bias for those whose illness precedes offending, but findings underscore the complexity and level of need among those with a younger age of onset. Copyright © 2018 John Wiley & Sons, Ltd.
关于暴力和犯罪行为起始年龄的发展类型学通常未考虑严重精神疾病（SMI）的作用，以及犯罪行为起始年龄与疾病起始年龄的关系是否会影响一生中犯罪行为的表现。
测试法医精神病患者是否可以根据严重精神疾病和犯罪行为的起始年龄进行分类，如果可以，各亚型在性别上是否存在差异。
从记录中收集了2011年或2012年在加拿大安大略省一家大型法医精神健康服务机构登记的所有511名患者的详细信息。
潜在剖面分析支持男性和女性均分为两类。对分类的外部验证表明，与那些在心理健康和刑事司法系统中的参与延迟到晚年的人相比，严重精神疾病和犯罪行为起始年龄较小的人具有更高水平的静态风险因素和犯罪需求。
我们的研究结果为患有严重精神疾病的罪犯的生命历程轨迹提供了一个新的视角。虽然分析仅确定了两个不同的起始年龄组，但在这两组中，疾病都先于犯罪行为出现。我们的样本完全来自住院患者，这一事实可能对那些疾病先于犯罪行为的人产生了选择偏差，但研究结果强调了起始年龄较小者的复杂性和需求程度。版权所有©2018约翰·威利父子有限公司。
