Evidence map›Paper›PMID 41769365›Full record

ArticleInternational journal of chronic obstructive pulmonary disease2026

Prevalence and Risk Factors of Chronic Obstructive Pulmonary Disease in Kazakhstan in a Nationwide Population-Based Epidemiological Study.

Denis Vinnikov, Irina Mukatova, Zhangir Tulekov, Aizhan Raushanova, Zhanna Romanova, Malika Sadibekova

Abstract readMulticenter Study
In one paragraph

Article in International journal of chronic obstructive pulmonary disease, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Review
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Denis VinnikovEnvironmental Health Lab, Al-Farabi Kazakh National University, Almaty, Kazakhstan.
Irina MukatovaDepartment of Internal Diseases with Courses of Nephrology, Hematology, Allergology, and Immunology, Astana Medical University, Astana, Kazakhstan.
Zhangir TulekovEnvironmental Health Lab, Al-Farabi Kazakh National University, Almaty, Kazakhstan.
Aizhan RaushanovaDepartment of Epidemiology, Biostatistics and Evidence-Based Medicine, Al-Farabi Kazakh National University, Almaty, Kazakhstan.
Zhanna RomanovaDepartment of Epidemiology, Biostatistics and Evidence-Based Medicine, Al-Farabi Kazakh National University, Almaty, Kazakhstan.
Malika SadibekovaDepartment of Internal Medicine, Karaganda Medical University, Karagandy, Kazakhstan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: Until recently, reports on chronic obstructive pulmonary disease (COPD) in Kazakhstan have been sporadic and reflected the disease burden in only one largest city, Almaty. We, therefore, aimed to characterize the prevalence and risk factors of COPD confirmed with a high-quality spirometry in a nationwide population-based study. Patients and Methods: We enrolled 5058 subjects, and hereinafter analyzed complete data for 4626 (age 47; interquartile range (IQR) 31;60 years) participants from the general population from five cities in Kazakhstan representing the West, North, South, East and the central part to fill in a questionnaire and undergo spirometry with bronchodilation. COPD was confirmed when post-bronchodilation forced expiratory volume in one second (FEV Results: Seven percent of the entire group (9% in men vs 6% in women) had COPD. The corresponding prevalence in the group 40 years and older was 10.7% (14.5% in men and 7.6% in women). For ΔFVC, 78% could achieve A or B quality, whereas 83% could attain A or B quality for ΔFEV Conclusion: COPD in Kazakhstan remains a highly underdiagnosed disease. Most COPD patients do not yet have a timely diagnosis and remain untreated. Smoking, occupational exposures and even tuberculosis in the past significantly increase the risk of this disease.

Indexed as

LungPulmonary Disease, Chronic ObstructiveAdultAgedAge FactorsChi-Square DistributionCross-Sectional StudiesFemaleForced Expiratory VolumeHumansKazakhstanLogistic ModelsMaleMiddle AgedMultivariate AnalysisOdds Ratiooccupationalpopulation-basedrespiratorysmokingspirometry

Identifiers

PMID41769365
PMCPMC12947755

What OpenQuestion holds

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Registered trials

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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.