Contribution of imitative suicide to the suicide rate in prisons |
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Authors: | McKenzie Nigel Keane Michael |
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Affiliation: | Camden and Islington Mental Health and Social Care Trust. n.mckenzie@ucl.ac.uk |
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Abstract: | 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. |
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