ArticleLung2016
The Risk Factors and Characteristics of COPD Among Nonsmokers in Korea: An Analysis of KNHANES IV and V.
Article in Lung, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
19 citing papers in PubMed, 33 citations in OpenAlex.
- Clinical Characteristics of Chronic Obstructive Pulmonary Disease according to Smoking Status.Tuberculosis and respiratory diseases · 2025Article
- Impact of Individual Characteristics on Hospital Outcomes in Exacerbated COPD in a Biomass-Exposed Turkish Population.Journal of clinical medicine · 2024Article
- Implementation of the Care Bundle for the Management of Chronic Obstructive Pulmonary Disease with/without Heart Failure.Journal of clinical medicine · 2024Review
- Analysis of COPD: Distinguishing Characteristics and Management of Smoking vs Never Smoking Patients.International journal of chronic obstructive pulmonary disease · 2024Article
- COPD in Never-Smokers: BOLD Australia Study.International journal of chronic obstructive pulmonary disease · 2024Article
- Prevalence, mortality and risk factors for self-reported COPD among smokers and never smokers, NHANES 1999-2018.Tobacco induced diseases · 2024Article
- Twenty years of changes in the definition of early chronic obstructive pulmonary disease.Chinese medical journal pulmonary and critical care medicine · 2023Review
- Hospital Burden of Chronic Obstructive Pulmonary Disease in Hong Kong - The Trend from 2006 to 2014.International journal of chronic obstructive pulmonary disease · 2023Article
- Characteristics and difference of respiratory diseases in Korean adults aged ≥40 years: A cross-sectional study.The clinical respiratory journal · 2023Article
- What are the Differences Between Smoker and Non-smoker COPD Cases? Is it a Different Phenotype?Turkish thoracic journal · 2021Article
- Diagnosis and Treatment of Early Chronic Obstructive Lung Disease (COPD).Journal of clinical medicine · 2020Review
- Prevalence of Asthma and COPD and Blood Eosinophil Count in a Middle-Aged Belgian Population.Journal of clinical medicine · 2019Article
- Comparison of clinical characteristics and overall survival between spirometrically diagnosed chronic obstructive pulmonary disease (COPD) and non-COPD never-smoking stage I-IV non-small cell lung cancer patients.International journal of chronic obstructive pulmonary disease · 2019Article
- Chronic obstructive pulmonary disease in non-smokers - Is it a different phenotype?The Indian journal of medical research · 2018Article
- Comorbidities, mortality, and management of chronic obstructive pulmonary disease patients who required admissions to public hospitals in Hong Kong - computerized data collection and analysis.International journal of chronic obstructive pulmonary disease · 2018Article
- The role of acute and chronic respiratory colonization and infections in the pathogenesis of COPD.Respirology (Carlton, Vic.) · 2017Review
- Prevalence and Risk Factors of Chronic Obstructive Pulmonary Disease among Nonsmokers: Fifth Korea National Health and Nutrition Examination Survey (2010-2012).Osong public health and research perspectives · 2016Article
- What Affects Chronic Obstructive Pulmonary Disease in Korea?Osong public health and research perspectives · 2016Article
- Relationship between climatic factors and air quality with tuberculosis in the Federal District, Brazil, 2003-2012.The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious DiseasesArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeChronic obstructive pulmonary disease (COPD) is increasing in prevalence and mortality. This study evaluated the prevalence, risk factors, characteristics, and health-related quality of life (HRQoL) of COPD among nonsmokers in Korea.
methodsThis was a population-based cross-sectional study using data obtained from the Fourth and Fifth Korean National Health and Nutrition Examination Survey, which was conducted from 2007 to 2011.
resultsA total of 15,063 participants completely answered the questionnaire and performed the spirometry. Among them, 59.6 % were nonsmokers and 40.4 % were smokers. The prevalence of nonsmoker COPD was 7.1 %. On multivariate analysis, age ≥65 years (OR, 2.93; 95 % CI, 2.44-3.51), male sex (OR, 2.98; 95 % CI, 2.40-3.71), living in rural area (OR, 1.26; 95 % CI, 1.05-1.51), lower body mass index (BMI) (<18.5 kg/m(2)) (OR, 3.00; 95 % CI, 1.78-5.01), self-reported asthma (OR, 2.72; 95 % CI, 2.05-3.60), and self-reported tuberculosis (OR, 4.73; 95 % CI, 3.63-6.17) showed a significantly higher risk of nonsmoker COPD. Analysis of nonsmoker and smoker COPD revealed that there are more females in nonsmoker COPD patients (73.9 vs. 6.9 %, P < 0.001). Nonsmoker COPD patients presented with impaired mobility, pain/discomfort, and anxiety/depression functions as well as a lower mean EuroQol Five-Dimension Questionnaire utility score, which showed HRQoL.
conclusionsThe burden of nonsmoker COPD was considerable. Older age, male sex, lower BMI, self-reported asthma, and self-reported tuberculosis were risk factors for nonsmoker COPD and there were differences between nonsmoker and smoker COPD in terms of sex, comorbidities, and HRQoL.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.