1. Point: Should We Abandon FEV1/FVC <0
Point: Should We Abandon FEV1/FVC <0.70 To Detect Airway Obstruction? No 
Bartolome R. Celli, MD, FCCP, Ron J. Halbert, MD 
CHEST 
Volume 138, Issue 5, Pages (November 2010)
DOI: /chest
Copyright © 2010 The American College of Chest Physicians Terms and Conditions

2. Figure 1.
Prevalence of physiologic COPD and hypertension. COPD was defined as FVC1/FVC <0.7. Hypertension was defined as values >140/90 mm Hg.
CHEST  , DOI: ( /chest )
Copyright © 2010 The American College of Chest Physicians Terms and Conditions

3. Figure 2.
Prevalence of patient-reported COPD and hypertension as reported in the Third National Health and Nutrition Examination Survey.
CHEST  , DOI: ( /chest )
Copyright © 2010 The American College of Chest Physicians Terms and Conditions