==== Front BMJ OpenBMJ OpenbmjopenbmjopenBMJ Open2044-6055BMJ Publishing Group BMA House, Tavistock Square, London, WC1H 9JR bmjopen-2017-021080corr110.1136/bmjopen-2017-021080corr1Correction1506Correction: Risky business: a longitudinal study examining cigarette smoking initiation among susceptible and non-susceptible e-cigarette users in Canada 2018 30 7 2018 30 7 2018 8 7 e021080corr1© Author(s) (or their employer(s)) 2018. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.2018This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.special-featureunlocked ==== Body Aleyan S, Cole A, Qian W, et al. Risky business: a longitudinal study examining cigarette smoking initiation among susceptible and non-susceptible e-cigarette users in Canada. BMJ Open 2018;8:e021080. doi: 10.1136/bmjopen-2017-021080. The previous version of this manuscript contains some errors in Figure 1, the baseline sample sizes reported in the third and fourth row of the figure were flipped. It was published as: non-current e-cigarette users (n= 133) current e-cigarette users (n=2679) This should instead read as: non-current e-cigarette users (n=2679) current e-cigarette users (n=133) Below is the updated Figure 1. ­ In addition there were some errors in the ‘Discussion’ section, the second paragraph should read as: The study findings demonstrated that only a small percentage of non-smoking students reported using e-cigarettes in the past 30 days (2.2%). and was incorrectly published as: The study findings demonstrated that only a small percentage of non-smoking students reported using e-cigarettes in the past 30 days (4.0%).