The Relationship Between Rates and Severity of Non-Suicidal Self-Injury and Suicide Attempts in Youth with Borderline Personality Disorder Holly E Andrewes 1,2 , Carol Hulbert 1 , Susan M Cotton 2,3 , Jennifer Betts 2,3 , Andrew M Chanen 2,3,4,§ 1 Melbourne School of Psychological Sciences, The University of Melbourne, Melbourne, Australia 2 Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Australia 3 Centre for Youth Mental Health, The University of Melbourne, Melbourne, Australia 4 Orygen Youth Health, Northwestern Mental Health, Melbourne, Australia § Corresponding author: Andrew M. Chanen, Orygen, The National Centre of Excellence in Youth Mental Health, Locked Bag 10, Parkville, Victoria, Australia 3052. E-mail: andrew.chanen@orygen.org.au Original data from this manuscript may be accessed upon request from the corresponding author (andrew.chanen@orygen.org.au). Acknowledgements This project was conducted within a larger study supported by a National Health and Medical Research Council (NHMRC) Project Grant (APPGNT0628739). Prof Sue Cotton is supported by a NHMRC Career Development Fellowship (APP1061998). A special thanks to the patients, families and staff of the Helping Young People Early Program at Orygen Youth Health and headspace Sunshine. We would also like to thank Dr Sharnel Perera, Sinn Yuin Chong, Victoria Rayner and Francesca Kuperman for their assistance with data collection. This article is protected by copyright. All rights reserved. This is the author manuscript accepted for publication and has undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/eip.12461