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01.12.2017 | Research | Ausgabe 1/2017 Open Access

Respiratory Research 1/2017

Which bronchodilator reversibility criteria can predict severe acute exacerbation in chronic obstructive pulmonary disease patients?

Zeitschrift:
Respiratory Research > Ausgabe 1/2017
Autoren:
Junghyun Kim, Woo Jin Kim, Chang-Hoon Lee, Sang Haak Lee, Myung-Goo Lee, Kyeong-Cheol Shin, Kwang Ha Yoo, Ji-Hyun Lee, Seong Yong Lim, Ju Ock Na, Hun-Gyu Hwang, Yoonki Hong, Myoung Nam Lim, Chul-Gyu Yoo, Ki Suck Jung, Sang-Do Lee
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1186/​s12931-017-0587-9) contains supplementary material, which is available to authorized users.

Abstract

Background

It is unclear whether various bronchodilator reversibility (BDR) criteria affect the prognosis of chronic obstructive pulmonary disease (COPD). The aim of this study is to evaluate the impact of positive BDR defined according to various BDR criteria on the risk of severe acute exacerbation (AE) in COPD patients.

Methods

Patients from four prospective COPD cohorts in South Korea who underwent follow-up for at least 1 year were enrolled in this study. The assessed BDR criteria included the Global Initiative for Chronic Obstructive Lung Disease (GOLD), American Thoracic Society (ATS), American College of Chest Physicians, (ACCP), major criteria of the Spanish definition of asthma-COPD overlap syndrome (ACOS), criteria compatible with ACOS in the Global Initiative for Asthma (GINA), and European Respiratory Society (ERS). The rate of patients with severe AE who required hospitalization within 1 year due to BDR results according to each set of criteria was analyzed using logistic regression models.

Results

Among a total of 854 patients, the BDR-positive cases varied according to the criteria used. There was a 3.5% positive BDR rate according to GINA and a 29.9% rate according to the ATS criteria. Positive BDR according to the GOLD criteria was significantly associated with a decreased risk of severe AE (adjusted odds ratio (aOR) = 0.38; 95% Confidence interval (CI) = 0.15–0.93). This result remained statistically significant even in a sensitivity analysis that included only participants with a smoking history of at least 10 pack-years and in the analysis for the propensity score-matched participants.

Conclusions

Among different criteria for positive BDR, the use of the GOLD ones was significantly associated with a decreased risk of severe AE in COPD patients. Increase use of ICS/LABA may have affected this relationship.
Zusatzmaterial
Additional file 1: Supplement data. (DOCX 44 kb)
12931_2017_587_MOESM1_ESM.docx
Literatur
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