Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2020 Mar 30;21:77. doi: 10.1186/s12931-020-01340-0

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2020

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. 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 in a credit line to the data.

PMC Copyright notice

Fig. 1 — Sampling timeline and composition. (a) Timeline from Oct 2011 to May 2014, COPD patients were enrolled and sampled during scheduled wellness visits (blue arrows), and any unscheduled visits (red and purple arrows) within 3 days of an acute exacerbation or exacerbation follow-up visit. Samples were considered stable if collected 31 days post-hospitalization or ARI. Dotted arrows correspond to samples collected at scheduled wellness visits that incidentally corresponded to acute exacerbation events (1.2%) and exacerbation follow-up visits (65%). Piecharts represent the proportion of patients from Europe and USA (b), the proportion of samples collected at each disease state (c) and the proportion of samples associated with antibiotics (Abx) and inhaled corticosteroids (CS) taken in the past 7 days (d)