ReviewInternational journal of chronic obstructive pulmonary disease2019
Trends in the prevalence of COPD in elderly individuals in an air-polluted city in Japan: a cross-sectional study.
Review in International journal of chronic obstructive pulmonary disease, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.
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
23 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.
- Chest CT in the evaluation of chronic obstructive pulmonary disease: recommendations of Asian Society of Thoracic Radiology.The British journal of radiology · 2026Guideline
- Diverging Trends in Home Respiratory Care in an Aging Society: National Data from Japan.JMA journal · 2026Article
- Low dietary quality in patients with COPD and the association with disease severity: A cross-sectional study.Asia Pacific journal of clinical nutrition · 2025Article
- Mapping the Global distribution, risk factors, and temporal trends of COPD incidence and mortality (1990-2021): ecological analysis.BMC medicine · 2025Article
- Inhalation treatment of chronic obstructive pulmonary disease (COPD) in older patients.Zeitschrift fur Gerontologie und Geriatrie · 2025Review
- Spatial clusters with high mortality rates for chronic obstructive pulmonary disease among municipalities in Japan between 2017 and 2021: a flexible spatial scan statistics approach.Nagoya journal of medical science · 2025Article
- High prevalence of respiratory diseases: a population-based ecological study, Sertão do Araripe, 2008-2019.Epidemiologia e servicos de saude : revista do Sistema Unico de Saude do Brasil · 2025Article
- Development and validation of a nomogram for predicting COPD: A nationwide population-based study in South Korea.Medicine · 2024Article
- Pulmonary Diseases in Older Patients: Understanding and Addressing the Challenges.Geriatrics (Basel, Switzerland) · 2024Article
- Underdiagnosis of COPD: The Japan COPD Real-World Data Epidemiological (CORE) Study.International journal of chronic obstructive pulmonary disease · 2024Article
- Substantial changes in Gaseous pollutants and health effects during COVID-19 in Delhi, India.PeerJ · 2023Article
- Article
- Role of Short-Chain Fatty Acids Produced by Gut Microbiota in Innate Lung Immunity and Pathogenesis of the Heterogeneous Course of Chronic Obstructive Pulmonary Disease.International journal of molecular sciences · 2022Review
- Assessing the impact of air pollution and climate seasonality on COVID-19 multiwaves in Madrid, Spain.Environmental research · 2022Article
- Geographical Differences and Their Associated Factors in Chronic Obstructive Pulmonary Disease Mortality in Japan: An Ecological Study Using Nationwide Data.International journal of environmental research and public health · 2021Article
- Impact of environmental factors and Sahara dust intrusions on incidence and severity of COVID-19 disease in Spain. Effect in the first and second pandemic waves.Environmental science and pollution research international · 2021Article
- Exploring the linkage between seasonality of environmental factors and COVID-19 waves in Madrid, Spain.Process safety and environmental protection : transactions of the Institution of Chemical Engineers, Part B · 2021Article
- Narrative review of current COPD status in Japan.Journal of thoracic disease · 2021Review
- Aging Immune System and Its Correlation With Liability to Severe Lung Complications.Frontiers in public health · 2021Review
- Short-term associations of air pollution and meteorological variables on the incidence and severity of COVID-19 in Madrid (Spain): a time series study.Environmental sciences Europe · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Purpose: The aim of this study was to examine the effects of exposure to air pollution and cigarette smoke on respiratory function, respiratory symptoms, and the prevalence of COPD in individuals aged ≥50 years. Patients and methods: We used spirometry and medical questionnaires to screen 433 individuals from Omuta City, Japan, an area with high levels of air pollution. Results: Non smokers had a high estimated COPD prevalence rate of 16%. Among smokers, the estimated prevalence of COPD was 29% in seniors (50- to 74-years group) and 37% in the elderly (>75 years group). We also found a correlation between levels of suspended particulate matter and COPD. Conclusion: Both smoking and chronic exposure to air pollution (>5 years) decreased respiratory function, exacerbated respiratory symptoms, and increased the prevalence of COPD. We strongly recommend periodic screening for the elderly patients to facilitate early detection of respiratory disease.
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.