ArticlePeerJ2020
Prevalence of chronic obstructive pulmonary disease at high altitude: a systematic review and meta-analysis.
Article in PeerJ, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.
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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.
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Who cites it
12 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Chronic obstructive pulmonary disease in East Africa: a systematic review and meta-analysis.International health · 2024Pooled it
- Identifying risk factors for COPD and adult-onset asthma: an umbrella review.European respiratory review : an official journal of the European Respiratory Society · 2023Pooled it
- Development and validation of nomogram including high altitude as a risk factor for COPD: A cross-sectional study based on Gansu population.Frontiers in public health · 2023Trial
- The prevalence of chronic obstructive pulmonary disease in high-altitude areas of China: a systematic review and meta-analysis.Journal of thoracic disease · 2025Article
- Association of altitude and eosinophil with the one-year mortality of acute exacerbation of chronic obstructive pulmonary disease: a cohort study.BMC pulmonary medicine · 2025Article
- A case of plateau heart disease misdiagnosed as chronic pulmonary heart disease.Journal of hypertension · 2025Article
- Prevalence of chronic obstructive pulmonary disease in high-risk populations at low, intermediate, high altitudes: a population based cross-sectional study in Yunnan Province, China.BMC pulmonary medicine · 2025Article
- Prevalence, Risk Factors of Preserved Ratio Impaired Spirometry in adult in plateau: A Cross-Sectional Study.PloS one · 2025Article
- Investigation and Analysis of Risk Factors and Psychological Status of Chronic Obstructive Pulmonary Disease in Permanent Residents Aged 40 or Older in Hongyuan County, Aba Prefecture, Sichuan Province.International journal of chronic obstructive pulmonary disease · 2023Article
- Pulmonary Hypertension in Acute and Chronic High Altitude Maladaptation Disorders.International journal of environmental research and public health · 2021Review
- Prevalence and Risk Factors for COPD at High Altitude: A Large Cross-Sectional Survey of Subjects Living Between 2,100-4,700 m Above Sea Level.Frontiers in medicine · 2020Article
- Impression life with pulmonary hypertension: clinically relevant characteristics and quality of life among patients in Gansu, China.Therapeutic advances in respiratory diseaseObservational
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
objectiveRecently, several studies have investigated the prevalence of chronic obstructive pulmonary disease (COPD) at high altitude (>1,500 m). However, much remains to be understood about the correlation between altitude and COPD. We aimed to summarize the prevalence of COPD at high-altitudes and find out if altitude could be a risk factor for COPD.
methodsWe searched PubMed/Medline, Cochrane Library, Web of Science, SCOPUS, OVID, Chinese Biomedical Literature Database (CBM) and Embase databases from inception to April 30th, 2019, with no language restriction. We used STATA 14.0 to analyze the extracted data. A random-effect model was used to calculate the combined OR and 95% CI. Heterogeneity was assessed by the
resultsWe retrieved 4,574 studies from seven databases and finally included 10 studies (54,578 participants). Males ranged from 18.8% to 49.3% and the population who smoked ranged from 3.3% to 53.3%. The overall prevalence of COPD at high-altitude was 10.0% (95% CI [0.08-0.12],
conclusionsOur study found a higher prevalence of COPD at high-altitudes than those from average data. However, altitude was not found to be an independent risk factor for developing COPD (PROSPERO Identifier: CRD42019135012).
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