Back to Journals » International Journal of Chronic Obstructive Pulmonary Disease » Volume 8

Over diagnosis of chronic obstructive pulmonary disease in an underserved patient population

Authors Ghattas C, Dai A, Gemmel DJ, Awad MH

Received 24 March 2013

Accepted for publication 10 July 2013

Published 12 November 2013 Volume 2013:8 Pages 545—549


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Christian Ghattas,1 Allen Dai,2 David J Gemmel,3 Magdi H Awad2

1Department of Internal Medicine, St Elizabeth Health Center, Youngstown, OH, USA; 2Northeast Ohio Medical University College of Pharmacy, Rootstown, OH, USA; 3Department of Medical Education and Research, St Elizabeth Health Center, Youngstown, OH, USA

Introduction: While cross-national studies have documented rates of chronic obstructive pulmonary disease (COPD) misdiagnosis among patients in primary care, US studies are scarce. Studies investigating diagnosis among uninsured patients are lacking.
Objective: The purpose of this study is to identify patients who are over diagnosed and thus, mistreated, for COPD in a federally qualified health center.
Methods: A descriptive study was conducted for a retrospective cohort from February 2011 to June 2012. Spirometry was performed by trained personnel following American Thoracic Society recommendations. Patients were referred for spirometry to confirm previous COPD diagnosis or to assess uncontrolled COPD symptoms. Airway obstruction was defined as a forced expiratory volume in the first second of expiration (FEV1) to forced vital capacity ratio less than 0.7. Reversibility was defined as a postbronchodilator increase in FEV1 greater than 200 mL and greater than 12%.
Results: Eighty patients treated for a previous diagnosis of COPD (n = 72) or on anticholinergic inhalers (n = 8) with no COPD diagnosis were evaluated. The average age was 52.9 years; 71% were uninsured. Only 17.5% (14/80) of patients reported previous spirometry. Spirometry revealed that 42.5% had no obstruction, 22.5% had reversible obstruction, and 35% had nonreversible obstruction.
Conclusion: Symptoms and smoking history are insufficient to diagnose COPD. Prevalence of COPD over diagnosis among uninsured patient populations may be higher than previously reported. Confirming previous COPD diagnosis with spirometry is essential to avoid unnecessary and potentially harmful treatment.

Keywords: chronic obstructive pulmonary disease, COPD, misdiagnosis, over diagnosis, spirometry, uninsured, underserved

Creative Commons License © 2013 The Author(s). This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.