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Factors associated with bronchiectasis in Korea: a national database study
Bumhee Yang1, Hyo Jun Jang2, Sung Jun Chung3
1Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea.
Annals of Translational Medicine
|December 14, 2020
Summary
Bronchiectasis is linked to lower income, asthma, and previous pulmonary tuberculosis (TB). Individuals with bronchiectasis experience more respiratory symptoms and a lower quality of life compared to the general population.
Area of Science:
- Pulmonary Medicine
- Epidemiology
- Public Health
Background:
- Bronchiectasis clinical features are known but often studied in specific cohorts.
- Factors associated with bronchiectasis require assessment in the general population.
Purpose of the Study:
- To identify factors associated with bronchiectasis using a national representative database.
- To compare clinical and socioeconomic factors in bronchiectasis patients versus the general population.
Main Methods:
- Cross-sectional study utilizing Korean National Health and Nutrition Examination Survey data (2007-2009).
- Multivariable logistic regression analysis adjusted for demographic and socioeconomic factors.
Main Results:
- Prevalence of bronchiectasis was 0.4%.
- Bronchiectasis patients were older, had lower BMI, lower family income, and lower educational levels.
- Comorbidities included higher rates of asthma, previous pulmonary tuberculosis (TB), osteoporosis, and depression.
- Bronchiectasis was associated with increased respiratory symptoms and poorer quality of life (EQ-5D index).
- Independently associated factors: low family income (aOR=3.83), asthma (aOR=3.73), pulmonary TB (aOR=7.88), and airflow limitation (aOR=2.98).
Conclusions:
- Bronchiectasis is associated with significant respiratory symptoms, limited physical activity, and reduced quality of life.
- Key independent risk factors include lower family income and comorbid pulmonary conditions like previous pulmonary TB and asthma.
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