Developing psychological perspectives of suicidal behaviour and risk in people with a diagnosis of schizophrenia: we know they kill themselves but do we understand why?

People with a diagnosis of schizophrenia are at increased risk of suicidal behaviour yet little is understood of the psychological underpinnings of this vulnerability. The biopsychosocial 'Cry of Pain' model [Williams, J.M.G. (1997). Cry of pain. Harmondsworth: Penguin.] provides a broad framework from which to understand suicidal behaviour. However, the utility of the model in relation to suicide in schizophrenia has not yet been explored. This was the primary goal of this paper. Six components of the 'Cry of Pain' model were identified and evaluated with respect to whether they contributed to i. common transdiagnostic factors underlying suicide, ii. factors relating to co-morbid depression which account for suicidal behaviour, or iii. factors which are specific to schizophrenia and underlie suicide risk. The potential for applying the model to clinical management of suicide in schizophrenia is illustrated.