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. 2018 Jan 22;18:17. doi: 10.1186/s12888-018-1592-3

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© The Author(s). 2018

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. 2 — Subgroup analysis of mental health consultation according to educational level stratified by suicidal thoughts. An example of how to interpret this figure is as follows: ‘people who have suicidal thoughts have a stronger association between educational level and use of mental health consultation.’ Control variables include age, gender, region, house income level, marital status, occupation, physical activity, smoking status, alcohol consumption, stress level, sleeping duration, and perceived health status