Background Respiratory parameters are important predictors of prognosis in the COPD
population. Global Initiative for Obstructive Lung Disease (GOLD) 2017 Update resulted in a …

Chronic obstructive pulmonary disease (COPD) ranks fourth as a cause of death in the
United States, behind heart disease, cancer, and stroke. Additionally, since serious co …

Background The Global Initiative for Chronic Obstructive Lung Disease (GOLD) 2017
separated pulmonary function from combined assessment. We aimed to analyze the …

Background Hypoxemia is associated with worse outcomes in COPD. The aim of the study
was to investigate the prevalence, incidence, and risk factors of hypoxic respiratory failure …

Background: Patients with COPD-specific symptoms and history but FEV1/FVC ratio≥ 0.7
are a heterogeneous group (former GOLD grade 0) with uncertainties regarding natural …

The purpose of this study was to assess whether different stages of chronic obstructive
pulmonary disease (COPD) severity defined according to the Global Initiative for Chronic …

Since the publication of the new GOLD proposal for the assessment of COPD, four studies
have used existing cohorts to explore the characteristics, temporal variability and/or …

Guidelines recommend defining chronic obstructive pulmonary disease (COPD) by airflow
obstruction and other factors, but no studies have evaluated the ability of existing …

The value and timing of multidimensional assessments in chronic obstructive pulmonary
disease (COPD) remains unclear because there is little information about their variability …

Background Chronic obstructive pulmonary disease (COPD) is increasingly considered a
heterogeneous condition. It was hypothesised that COPD, as currently defined, includes …