Risk factors for suicide among patients with schizophrenia: a cohort study focused on cerebrospinal fluid levels of homovanillic acid and 5-hydroxyindoleacetic acid
Authors Neider D, Lindström L, Boden R
Received 25 February 2016
Accepted for publication 8 April 2016
Published 11 July 2016 Volume 2016:12 Pages 1711—1714
Checked for plagiarism Yes
Review by Single-blind
Peer reviewer comments 3
Editor who approved publication: Dr Roger Pinder
Daniel Neider, Leif H Lindström, Robert Bodén
Department of Neuroscience, Psychiatry, Uppsala University, Uppsala University Hospital, Uppsala, Sweden
Background: The objective of this study was to investigate the association between 5-hydroxyindoleacetic acid (5-HIAA) and homovanillic acid (HVA) in cerebrospinal fluid (CSF), bullying, and later suicide among patients with schizophrenia.
Methods: Ninety-nine patients with schizophrenia were included. Correlations of clinical factors, 5-HIAA and HVA, and later suicide were investigated.
Results: Twelve patients committed suicide (12%) during a 28-year follow-up period. Later suicide was correlated to bullying in childhood (P=0.02) and a lower quotient of HVA/5-HIAA in CSF (P<0.05).
Conclusion: Suicide in schizophrenia is related to childhood exposedness and CSF neurotransmitter levels.
Keywords: psychosis, risk factors, bullying, HVA, 5-HIAA, CSF
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