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Insight and risk of suicidal behaviour in two first-episode psychosis cohorts: effects of previous suicide attempts and depression

Lopez-Morinigo, J-D; Di Forti, M; Ajnakina, O; Wiffen, B; Morgan, K; Doody, GA; Jones, PB; ... David, AS; + view all (2019) Insight and risk of suicidal behaviour in two first-episode psychosis cohorts: effects of previous suicide attempts and depression. Schizophrenia Research 10.1016/j.schres.2018.09.016. (In press). Green open access

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Abstract

BACKGROUND: The role of insight dimensions - illness recognition (IR), symptoms relabelling (SR), treatment compliance (TC) - in suicide risk in firstepisode psychosis (FEP) remains unclear. METHOD: The AESOP (n=181) and GAP (n=112) FEP cohorts were followed-up over 10- and 5 years. Survival analysis modelled time to first suicidal event in relation to baseline scores on the Schedule for the Assessment of Insight, whilst adjusting for demographic, clinical, psychopathological and neuropsychological variables. RESULTS: AESOP: those with previous suicide attempts scored higher on IR (7.6±1.9 vs. 5.9±3.0, p<0.01) and total insight scores (TIS) (17.2±5.0 vs. 13.4±6.7, p=0.03). IR (r=0.23, p<0.01), SR (r=0.18, p=0.04) and TC (r=0.26, p<0.01) correlated with depression. Univariable analyses: IR (HR=1.14, 95%CI=0.98-1.34, p=0.09), TC (HR=1.30, 95%CI=0.99-1.71, p=0.06) and TIS (HR=1.06, 95%CI=0.99-1.13, p=0.08) were linked with suicidal behaviour. Multivariable regression models: depression (HR=1.55, 95%CI=1.22-1.97, p<0.01) predicted suicidal behaviour. GAP: SR (6.4±3.1 vs. 4.5±3.4, p=0.03) and TIS (16.8±6.4 vs. 12.8±7.4, p=0.03) were higher in those with suicidal antecedents. IR (r=0.32, p<0.01) and SR (r=0.27, p=0.01) correlated with depression. Univariable analyses: TC (HR=1.36, 95%CI=1.01-1.83, p=0.04) and TIS (HR=1.06, 95%CI=0.99-1.14, p=0.08) were associated with suicidal behaviour. Multivariable regression models: previous suicide attempts (HR 5.17, 95%CI 1.32-20.29, p=0.02) and depression (HR 1.16, 95%CI=1.00-1.35, p=0.04) predicted suicidal behaviour. CONCLUSIONS: Suicide attempts prior to FEP and depression at that point were associated with baseline insight levels and predicted risk of suicidal behaviour over the follow-up, which was not linked with insight. This may explain the apparent association of insight with suicidality in FEP.

Type: Article
Title: Insight and risk of suicidal behaviour in two first-episode psychosis cohorts: effects of previous suicide attempts and depression
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.schres.2018.09.016
Publisher version: https://doi.org/10.1016/j.schres.2018.09.016
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: insight, suicidal behaviour risk, first-episode psychosis, depression
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Division of Psychiatry
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health > Behavioural Science and Health
URI: https://discovery.ucl.ac.uk/id/eprint/10056589
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