Comparison of characteristics between ics-treated copd patients and ics-treated copd patients with concomitant asthma: A study in primary care

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Abstract

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 medica-tion, 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), FEV1%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.

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Savran, O., Godtfredsen, N. S., Sørensen, T., Jensen, C., & Ulrik, C. S. (2020). Comparison of characteristics between ics-treated copd patients and ics-treated copd patients with concomitant asthma: A study in primary care. International Journal of COPD, 15, 931–937. https://doi.org/10.2147/COPD.S241561

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