The University of Louisville Journal of Respiratory Infections



Community-acquired pneumonia (CAP) is a leading cause of death worldwide. Chronic obstructive pulmonary disease (COPD) is a well-established risk factor for development of CAP. What is not as clear is the impact of COPD in the outcomes of patients with CAP. In this study, we compared the outcomes of CAP in COPD and non-COPD patients.


This was a retrospective cohort study. We conducted a secondary analysis of the Community-Acquired Pneumonia Organization (CAPO) international cohort study database, which includes patients with CAP admitted to several hospitals throughout the world. Outcomes were time to clinical stability, length of hospital stay, and in-hospital mortality.


This study included 7,325 patients. Of these, 1,869 (25.5%) had COPD. Patients with COPD had higher severity of illness (pneumonia severity index class V: 15% vs 9%; P


Our study results show that COPD should not be considered a risk factor for poor outcomes in hospitalized patients with CAP.


The author(s) received no specific funding for this work.



Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.