• Tiago C Zortea, Seonaid Cleare, Ambrose J Melson, Karen Wetherall, and Rory C O'Connor.
• Suicidal Behaviour Research Laboratory, Institute of Health and Wellbeing, College of Medical, Veterinary and Life Sciences, University of Glasgow.
• Br. Med. Bull. 2020 Jul 9; 134 (1): 73-84.

BackgroundSuicidal behaviours and non-suicidal self-harm (NSSH) are global public health concerns that affect millions of lives.Sources Of DataThis review is a narrative synthesis of systematic reviews, meta-analyses of randomized control trials (RCTs) and landmark studies published in scientific journals.Areas Of AgreementRestricting access to lethal means reduces the likelihood of future suicide deaths.Areas Of ControversyOur ability to predict future suicidal behaviour is no better than chance. No individual risk prediction instrument offers sufficient sensitivity and specificity to inform clinically useful decision-making.Growing PointsDifferent types of psychosocial interventions may be effective in preventing future suicide attempts; such interventions include clinical assessment, tailored crisis response and safety plans and follow-up contact.Areas Timely For Developing ResearchWhilst some psychosocial interventions can be effective in reducing suicide risk, little is known about the mechanisms of recovery from suicidal thoughts and behaviours.© The Author(s) 2020. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

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