Medical utilization and cost in patients with overlap syndrome of chronic obstructive pulmonary disease and asthma

Chin Kook Rhee, Hyoung Kyu Yoon, Kwang Ha Yoo, Young Sam Kim, Sei Won Lee, Yong Bum Park, Jin Hwa Lee, Yuri Kim, Kyungjoo Kim, Jinhee Kim, Yeon Mok Oh, Sang Do Lee

Research output: Contribution to journalArticlepeer-review

111 Scopus citations

Abstract

Background: Little information is available regarding medical utilization and cost in patients with overlap syndrome of chronic obstructive pulmonary disease (COPD) and asthma. The purpose of this study is to analyze medical utilization and cost in patients with overlap syndrome and to compare them to COPD patients without asthma. Methods: Using the 2009 Korean National Health Insurance (NHI) database, COPD patients were identified. Medical utilization and costs were also analyzed. Results: Of a total of 185,147 patients identified with COPD, 101,004 patients were classified with overlap syndrome of COPD and asthma and 84,143 patients with COPD without asthma. In 2009, the percentages of emergency room visits, admissions, and intensive care unit admissions were 14.6%, 30.5%, and 0.5%, respectively, in the patients with overlap syndrome group and 5.0%, 14.1%, and 0.2%, respectively, in the COPD patients without asthma group (p < 0.05 for all comparisons). The cost of medical utilization was 790 ± 71 US dollars per person and 3,373 ± 4,628 dollars per person for outpatient and inpatient services, respectively, in the patients with overlap syndrome and 413 ± 512 and 3,010 ± 5,013, respectively, in the COPD patients without asthma (p < 0.05 for all comparisons). Multiple linear regression showed that age, sex, overlap syndrome, hospitalization in the last year, low socioeconomic status, and type of hospital use were significant factors affecting medical utilization and cost. Conclusions: In patients with overlap syndrome, both medical utilization and cost were higher than in COPD patients without asthma.

Original languageEnglish
Pages (from-to)163-170
Number of pages8
JournalCOPD: Journal of Chronic Obstructive Pulmonary Disease
Volume11
Issue number2
DOIs
StatePublished - Apr 2014

Keywords

  • Asthma
  • Chronic obstructive pulmonary disease
  • Medical cost
  • Medical utilization
  • Overlap syndrome

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