Characteristics of patients with chronic obstructive pulmonary disease at the first visit to a pulmonary medical center in Korea: The KOrea COpd subgroup study team cohort

Jung Yeon Lee, Gyu Rak Chon, Chin Kook Rhee, Deog Kyeom Kim, Hyoung Kyu Yoon, Jin Hwa Lee, Kwang Ha Yoo, Sang Haak Lee, Sang Yeub Lee, Tae Eun Kim, Tae Hyung Kim, Yong Bum Park, Yong Il Hwang, Young Sam Kim, Ki Suck Jung

    Research output: Contribution to journalArticlepeer-review

    40 Citations (Scopus)

    Abstract

    The Korea Chronic Obstructive Pulmonary Disorders Subgroup Study Team (Korea COPD Subgroup Study team, KOCOSS) is a multicenter observational study that includes 956 patients (mean age 69.9 ± 7.8 years) who were enrolled from 45 tertiary and universityaffiliated hospitals from December 2011 to October 2014. The initial evaluation for all patients included pulmonary function tests (PFT), 6-minute walk distance (6MWD), COPD Assessment Test (CAT), modified Medical Research Council (mMRC) dyspnea scale, and the COPD-specific version of St. George's Respiratory Questionnaire (SGRQ-C). Here, we report the comparison of baseline characteristics between patients with early- (Global Initiative for Chronic Obstructive Lung Disease [GOLD] stage I and II/groups A and B) and late-stage COPD (GOLD stage III and IV/groups C and D). Among all patients, the mean postbronchodilator FEV1 was 55.8% ± 16.7% of the predicted value, and most of the patients were in GOLD stage II (520, 56.9%) and group B (399, 42.0%). The number of exacerbations during one year prior to the first visit was significantly lower in patients with early COPD (0.4 vs. 0.9/0.1 vs. 1.2), as were the CAT score (13.9 vs. 18.3/13.5 vs. 18.1), mMRC (1.4 vs. 2.0/1.3 vs.1.9), and SGRQ-C total score (30.4 vs. 42.9/29.1 vs. 42.6) compared to late-stage COPD (all P < 0.001). Common comorbidities among all patients were hypertension (323, 37.7%), diabetes mellitus (139, 14.8%), and depression (207, 23.6%). The data from patients with early COPD will provide important information towards early detection, proper initial management, and design of future studies.

    Original languageEnglish
    Pages (from-to)553-560
    Number of pages8
    JournalJournal of Korean medical science
    Volume31
    Issue number4
    DOIs
    Publication statusPublished - 2016

    Keywords

    • Chronic obstructive
    • Pulmonary disease
    • Questionnaires
    • Respiratory function tests

    ASJC Scopus subject areas

    • Medicine(all)

    Fingerprint

    Dive into the research topics of 'Characteristics of patients with chronic obstructive pulmonary disease at the first visit to a pulmonary medical center in Korea: The KOrea COpd subgroup study team cohort'. Together they form a unique fingerprint.

    Cite this