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. 2017 Jan 21;17:102. doi: 10.1186/s12889-017-4034-0

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© The Author(s). 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1 — Graphical display of item-response probabilities for health behaviours across the four classes resulting from the LCA in the total sample (n = 18,587) from Year 1 (2012–13) of the COMPASS Study in Ontario, Canada. Health conscious youth (cluster 3) have the overall healthiest item response probability profile across the latent classes. The inactive screenagers and moderately active substance users had higher item response probabilities for a larger number of obesity-related and substance use behaviours