… This meta-analysis suggests that, as … COPD, severe COPD, and COPD exacerbation.
Vitamin D deficiency is associated with increased risk of COPD and severe COPD but not COPD …

… meta-analysis of telemonitoring effects on reducing or preventing hospitalisations due to
severe COPD … Of the 22 studies, a total of 10 studies (45%) were included in this meta-analysis. …

… Comorbidities are associated with the severity of … meta-analysis aimed to explore the risk
of severe COVID-19 in patients with pre-existing chronic obstructive pulmonary disease (COPD…

… Therefore, our study aimed to estimate the case fatality of a severe COPD exacerbation …
In conclusion, mortality in COPD is common and severe exacerbations of COPD are one of …

… , COPD and ACE2 levels on the clinical course of COVID-19. Results of this study differed
from a previous meta-analysis … risk of progression towards severe disease outcomes in COVID-…

… or severity. However, studies investigating pain in patients with moderate COPD reported
higher pain prevalence compared to studies in patients with severe of very severe COPD. …

… chronic obstructive pulmonary disease (COPD) by means of a systematic review and random
effects meta-analysis… estimates for COPD, chronic bronchitis and/or emphysema; and 2) …

… in COPD have been published. Despite these limitations, we believe that this metaanalysis …
the comparative effects of anticholinergics and [~2-agonists on clinical outcomes in COPD. …

… determine whether those with advanced COPD should be offered PR … meta-analysis of
randomized controlled trials (RCTs) was to evaluate, in patients with very severe but stable COPD…

… In this systematic review and meta-analysis of 15 studies including a total of 2473 … severity
and mortality in COPD patients and current smokers. Despite the low prevalence of COPD and …