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Comparison of Characteristics Between ICS-Treated COPD Patients and ICS-Treated COPD Patients with Concomitant Asthma: A Study in Primary Care

Authors Savran O, Godtfredsen NS, Sørensen T, Jensen C, Ulrik CS

Received 9 December 2019

Accepted for publication 21 March 2020

Published 28 April 2020 Volume 2020:15 Pages 931—937


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Richard Russell

Osman Savran,1 Nina Skavlan Godtfredsen,1,2 Torben Sørensen,3 Christian Jensen,4 Charlotte Suppli Ulrik1,2

1Department of Respiratory Medicine, Hvidovre Hospital, Hvidovre, Denmark; 2Institute of Clinical Medicine, University of Copenhagen, Copenhagen,Denmark; 3Værløse Lægehus, Værløse, Denmark; 4Lægehuset Remisen, Præstø, Denmark

Correspondence: Charlotte Suppli Ulrik
Respiratory Research Unit, Department of Respiratory Medicine, Hvidovre Hospital, Hvidovre DK-2650, Denmark

Background and Objective: Inhaled corticosteroids (ICS) for COPD has been much debated. Our aim was to identify characteristics associated with prescribing ICS for patients with COPD alone compared to those with concomitant asthma in general practice.
Patients and Methods: Participating general practitioners (GPs) (n=144) recruited patients with COPD (ICPC 2nd ed. code R95) currently prescribed ICS (ACT code R03AK and R03BA). Data, if available, on demographics, smoking habits, spirometry, COPD medication, dyspnea score, and exacerbation history were retrieved from the medical records. Logistic regression analysis was used to identify possible differences in characteristics between patients with COPD alone compared to those having a concomitant diagnosis of asthma.
Results: A total of 2.289 (45% males) COPD patients on ICS were recruited. Compared to patients with COPD alone (n=1.749), those with COPD and concomitant asthma (n=540) were younger (p< 0.001), had higher BMI, higher FEV1/FVC ratio, higher blood eosinophil count and less life-time tobacco exposure (36 and 26 pack-years, respectively). Compared to COPD alone, logistic regression analysis showed that COPD with concomitant asthma was significantly associated to age (OR 0.94; CI 0.92 to 0.97; p< 0.001), pack-years of smoking (OR 0.98; CI 0.97 to 0.99; p< 0.001), %pred (OR 1.02; CI 1.00 to 1.03; p=0.005), and doctor-diagnosed depression (OR 2.59; CI 1.20 to 5.58; p=0.015).
Conclusion: In COPD patients currently prescribed ICS, the presence of concomitant asthma was associated with being younger, having less tobacco exposure, more preserved lung function and a higher likelihood of doctor-diagnosed depression compared to COPD alone.

Keywords: COPD, concomitant asthma, inhaled corticosteroids (ICS), general practice

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