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. 2019 May 8;20:86. doi: 10.1186/s12931-019-1059-1

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© The Author(s). 2019

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 — Association of platelet count with first on-treatment (a) moderate/severe COPD exacerbations, b severe COPD exacerbations, and (c) cardiovascular composite event (cardiovascular death, myocardial infarction, stroke, unstable angina, and transient ischemic attack) Open circles and 95% confidence intervals represent hazard ratio in each quintile in reference to middle quintile, shown as a filled circle. Curve and shaded region show hazard ratio and 95% confidence region of platelet count as a continuous variable in reference to the median platelet count