• Patricia Gooding, Nicholas Tarrier, Graham Dunn, Jennifer Shaw, Yvonne Awenat, Fiona Ulph, and Daniel Pratt.
• School of Psychological Sciences, University of Manchester, Manchester, UK; Manchester Health Science Centre (MAHSC), Manchester, UK. Electronic address: patricia.gooding@manchester.ac.uk.
• Psychiatry Res. 2015 Dec 15; 230 (2): 464-71.

AbstractThe aim of this study was to examine the impact of two risk factors working together on a measure of suicide probability in a highly vulnerable group who were male prisoners identified as being at risk of self harm. The first risk factor was psychiatric symptoms, including general psychiatric symptoms and symptoms of personality disorder. The second risk factor was psychological precursors of suicidal thoughts and behaviours which were defeat, entrapment, and hopelessness. Sixty-five male prisoners from a high secure prison in NW England, UK, were recruited, all of whom were considered at risk of suicide by prison staff. General psychiatric symptoms and symptoms of personality disorders predicted the probability of suicide. Hopelessness amplified the strength of the positive relationship between general psychiatric symptoms and suicide probability. These amplification effects acted most strongly on suicidal ideation as opposed to negative self evaluations or hostility. In contrast, defeat, entrapment and hopelessness did not affect the relationship between personality disorders and suicide probability. Clinical assessments of highly vulnerable individuals, as exemplified by prisoners, should include measures of a range of general psychiatric symptoms, together with measures of psychological components, in particular perceptions of hopelessness.Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

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