Clinical relevance of fixed ratio vs lower limit of normal of FEV1/FVC in COPD: patient-reported outcomes from the CanCOLD cohort

W van Dijk, W Tan, P Li, B Guo, S Li… - The Annals of Family …, 2015 - Annals Family Med
PURPOSE The way in which spirometry is interpreted can lead to misdiagnosis of chronic
obstructive pulmonary disease (COPD) resulting in inappropriate treatment. We compared …

Comparison of spirometry criteria for the diagnosis of COPD: results from the BOLD study

WM Vollmer, Þ Gíslason, P Burney… - European …, 2009 - Eur Respiratory Soc
Published guidelines recommend spirometry to accurately diagnose chronic obstructive
pulmonary disease (COPD). However, even spirometry-based COPD prevalence estimates …

[HTML][HTML] Lower limit of normal or FEV1/FVC< 0.70 in diagnosing COPD: an evidence-based review

FAAM Hoesein, P Zanen, JWJ Lammers - Respiratory medicine, 2011 - Elsevier
AIM: To review the currently available literature comparing the FEV1/FVC< LLN with a fixed
value of FEV1/FVC< 0.70 in diagnosing airflow obstruction in subjects aged> 40 years …

[HTML][HTML] Should the diagnosis of COPD be based on a single spirometry test?

TR Schermer, B Robberts, AJ Crockett… - NPJ primary care …, 2016 - nature.com
Clinical guidelines indicate that a chronic obstructive pulmonary disease (COPD) diagnosis
is made from a single spirometry test. However, long-term stability of diagnosis based on …

A novel spirometric measure identifies mild COPD unidentified by standard criteria

AG Dilektasli, J Porszasz, R Casaburi, WW Stringer… - Chest, 2016 - Elsevier
Background In chronic obstructive pulmonary disease, both smaller and larger airways are
affected. FEV 1 mainly reflects large airways obstruction, while the later fraction of forced …

Clinical relevance of diagnosing COPD by fixed ratio or lower limit of normal: a systematic review

WD van Dijk, N Gupta, WC Tan… - COPD: Journal of …, 2014 - Taylor & Francis
Background: Different spirometric criteria in diagnosing COPD have been advocated by
different groups, debilitating adequate diagnosis and treatment of COPD. We reviewed the …

[HTML][HTML] From GOLD 0 to pre-COPD

MLK Han, A Agusti, BR Celli, GJ Criner… - American journal of …, 2021 - atsjournals.org
The diagnosis of chronic obstructive pulmonary disease (COPD) currently requires the
demonstration of poorly reversible airflow limitation, defined as a post-bronchodilator …

Spirometry and dyspnea in patients with COPD: when small differences mean little

DA Redelmeier, RS Goldstein, ST Min, RH Hyland - Chest, 1996 - Elsevier
Objective To determine when a difference in FEV 1 is sufficiently large to be associated with
a noticeable difference in dyspnea symptoms for patients with chronic lung disease. Design …

Case definitions for chronic obstructive pulmonary disease

E Hnizdo, HW Glindmeyer, EL Petsonk… - COPD: Journal of …, 2006 - Taylor & Francis
The objective of this study was to evaluate the definitions for classification of chronic
obstructive pulmonary disease (COPD) recommended by the American Thoracic Society …

Interpreting lung function data using 80% predicted and fixed thresholds identifies patients at increased risk of mortality

DM Mannino, E Diaz-Guzman - Chest, 2012 - Elsevier
Background The GOLD (Global Initiative for Chronic Obstructive Lung Disease) stages for
COPD use a fixed ratio of the postbronchodilator FEV 1/FVC ratio of 0.70 as a threshold to …