Updates are available Correction dated 2019-11-15

Article History

Received: 11 January 2019

Accepted: 5 June 2019

First Online: 13 June 2019

Change Date: 15 November 2019

Change Type: Correction

Change Details: The article [Bayesian approach to investigate a two-state mixed model of COPD exacerbations], written by [Anna Largajolli, Misba Beerahee, Shuying Yang], was originally published electronically on the publisher’s internet portal (currently SpringerLink) on [13 June 2019] without open access. With the author(s)’ decision to opt for Open Choice the copyright of the article changed on [November 2019] to © The Author(s) [2019] and the article is forthwith distributed under the terms of the Creative Commons Attribution 4.0 International License (<ExternalRef><RefSource>http://creativecommons.org/licenses/by/4.0/</RefSource><RefTarget Address="http://creativecommons.org/licenses/by/4.0/" TargetType="URL"/></ExternalRef>), which permits use, duplication, adaptation, distribution and reproduction in any medium or format, as long as 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. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (<ExternalRef><RefSource>http://creativecommons.org/licenses/by/4.0/</RefSource><RefTarget Address="http://creativecommons.org/licenses/by/4.0/" TargetType="URL"/></ExternalRef>), which permits use, duplication, adaptation, distribution and reproduction in any medium or format, as long as 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.

Compliance with ethical standards

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: AL was a post-doc researcher of GlaxoSmithKline at the time of conducting this work. She now works at Certara Strategic Consulting. SY and MB are employees and shareholders of GlaxoSmithKline.