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Eosinophilia and clinical outcome of chronic obstructive pulmonary disease: a meta-analysis.

Abstract：

:Numerous studies have investigated the association between eosinophilia and clinical outcome of patients with chronic obstructive pulmonary disease (COPD) but the evidence is conflicting. We conducted a pooled analysis of outcome measures comparing eosinophilic and non-eosinophilic COPD patients. We searched articles indexed in four databases using Medical Subject Heading or Title and Abstract words including COAD, COPD, eosinophil, eosinophilia, eosinopenia from inception to December 2016. Observational studies and randomized controlled trials with parallel groups comparing COPD patients with and without eosinophilia were included. Comparing to the non-eosinophilic group, those with eosinophilic COPD had a similar risk for exacerbation in 12 months [Odds ratio = 1.07, 95% confidence interval (CI) 0.86-1.32, P = 0.55] and in-hospital mortality [OR = 0.52, 95% CI 0.25-1.07]. Eosinophilia was associated with reduced length of hospital stay (P = 0.04). Subsequent to therapeutic interventions, eosinophilic outpatients performed better in pulmonary function tests [Mean Difference = 1.64, 95% CI 0.05-3.23, P < 0.001]. Inclusion of hospitalized patients nullified the effect. Improvement of quality of life was observed in eosinophilic subjects [Standardized Mean Difference = 1.83, 95% CI 0.02-3.64, P = 0.05], independent of hospitalization status. In conclusion, blood eosinophilia may be predictive of favorable response to steroidal and bronchodilator therapies in patients with stable COPD.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Ho J,He W,Chan MTV,Tse G,Liu T,Wong SH,Leung CCH,Wong WT,Tsang S,Zhang L,Chan RYP,Gin T,Leung J,Lau BWM,Wu WKK,Ngai SPC

doi

10.1038/s41598-017-13745-x

subject

Has Abstract

pub_date

2017-10-18 00:00:00

pages

13451

issue

1

issn

2045-2322

pii

10.1038/s41598-017-13745-x

journal_volume

7

pub_type

杂志文章,meta分析

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