Psychosis and Hopelessness Mediate the Relationship Between Reduced Sleep and Suicidal Ideation in Schizophrenia Spectrum Disorders

Sean P Carruthers; Stuart J Lee; Anoop Sankaranarayanan; Philip J Sumner; Wei Lin Toh; Eric J Tan; Erica Neill; Tamsyn E Van Rheenen; Caroline Gurvich; Susan L Rossell

Journal article

Psychosis and Hopelessness Mediate the Relationship Between Reduced Sleep and Suicidal Ideation in Schizophrenia Spectrum Disorders

Sean P Carruthers, Stuart J Lee, Anoop Sankaranarayanan, Philip J Sumner, Wei Lin Toh, Eric J Tan, Erica Neill, Tamsyn E Van Rheenen, Caroline Gurvich, Susan L Rossell

ARCHIVES OF SUICIDE RESEARCH | ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD | Published : 2021

DOI: 10.1080/13811118.2021.1944412

Abstract

OBJECTIVE: Suicide is a major cause of death amongst individuals with schizophrenia spectrum disorders (SSD). Despite numerous risk factors being identified, accurate prediction of suicidality and provision of tailored and effective treatment is difficult. One factor that may warrant particular attention as a contributor to increased psychopathology and suicidality in SSD is disturbed sleep. Sleep disturbances have been reliably linked to greater levels of suicidal ideation and are highly prevalent amongst individuals with SSD. This study aimed to examine if reduced sleep duration and psychopathology are associated with increased suicidal ideation. METHOD: One-hundred and eighteen adults wit..

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University of Melbourne Researchers

Tamsyn van Rheenen Author Psychiatry

Erica Neill Author Psychiatry

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Grants

Awarded by Australian National Health and Medical Research Council (NHMRC)

Funding Acknowledgements

Participants for this study were sourced, in part, through the Cognitive and Genetic Explanations of Mental Illness (CAGEMIS) bio-databank, which is supported by the Australian National Health and Medical Research Council (NHMRC; Project grant to Rossell, S. [GNT1060664] and Toh, W. L. [GNT1161609], Early Career Fellowships to Gurvich, C. [GNT546262], Lee, S. [GNT1111428], Tan, E. [GNT1142424] and Van Rheenen, T. [GNT1088785], and a Senior Research Fellowship to Rossell, S. [GNT154651]). This research was also supported by a Barbara Dicker Brain Sciences Foundation grant awarded to Dr Carruthers and Prof Rossell. None of the funding sources played any role in the study design; collection, analysis or interpretation of data; in the writing of the report; or in the decision to submit the paper for publication.