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Contribution of Imitative Suicide to the Suicide Rate in Prisons
Author(s) -
McKenzie Nigel,
Keane Michael
Publication year - 2007
Publication title -
suicide and life‐threatening behavior
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.544
H-Index - 90
eISSN - 1943-278X
pISSN - 0363-0234
DOI - 10.1521/suli.2007.37.5.538
Subject(s) - cluster analysis , imitation , suicide rates , prison , space (punctuation) , suicide attempt , psychology , demography , medicine , suicide prevention , psychiatry , medical emergency , poison control , criminology , statistics , computer science , social psychology , sociology , mathematics , operating system
Suicide rates in prisons are high. Our aim was to investigate the contribution of imitative suicide to the prison suicide rate. We used Knox tests for space‐time clustering in a case register of natural and self‐inflicted deaths in prisons in England and Wales and model simulations to estimate the effect size. We found significant space‐time clustering among 657 self‐inflicted deaths in 90 prisons over 10 years but no space‐time clustering among 430 deaths from natural causes in 87 prisons over this period. Model simulations with an imitation rate of 5.8% (CI 1%‐11%) reproduced the observed space‐time clustering.