Evidence map›Paper›PMID 24944511›Full record

ArticleInternational journal of chronic obstructive pulmonary disease2014

Continuing to Confront COPD International Patient Survey: methods, COPD prevalence, and disease burden in 2012-2013.

Sarah H Landis, Hana Muellerova, David M Mannino, Ana M Menezes, MeiLan K Han, Thys van der Molen, Masakazu Ichinose, Zaurbek Aisanov, Yeon-Mok Oh, Kourtney J Davis

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in International journal of chronic obstructive pulmonary disease, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 92 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
92citing papers in PubMed, 3 pooled it
11.3field-weighted citation impact, top 1% of its field
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

92 citing papers in PubMed, 3 syntheses or guidelines pooled it, 154 citations in OpenAlex.

  1. Prevalence and Economic Burden of Respiratory Diseases in Central Asia and Russia: A Systematic Review.International journal of environmental research and public health · 2020
    Pooled it
  2. Guideline
  3. Effect of carbocisteine on patients with COPD: a systematic review and meta-analysis.International journal of chronic obstructive pulmonary disease · 2017
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  20. Pulmonary hypertension associated with lung diseases.The European respiratory journal · 2024
    Review

32 more citing papers are in PubMed but not listed here.

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

10 authors at 8 institutions in 7 countries.

Sarah H LandisWorldwide Epidemiology, GlaxoSmithKline, Uxbridge, UK.
Hana MuellerovaWorldwide Epidemiology, GlaxoSmithKline, Uxbridge, UK.
David M ManninoUniversity of Kentucky College of Public Health, Lexington, KY, USA.
Ana M MenezesFederal University of Pelotas, Pelotas, Brazil.
MeiLan K HanDivision of Pulmonary and Critical Care, University of Michigan, Ann Arbor, MI, USA.
Thys van der MolenUniversity Medical Center Groningen, Groningen, Netherlands.
Masakazu IchinoseTohoku University Graduate School of Medicine, Sendai, Japan.
Zaurbek AisanovPulmonology Research Institute, Moscow, Russia.
Yeon-Mok OhUniversity of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea.
Kourtney J DavisWorldwide Epidemiology, GlaxoSmithKline, Wavre, Belgium.
GlaxoSmithKline (United Kingdom) · GBGlaxoSmithKline (Belgium) · BETohoku University · JPUlsan College · KRUniversidade Federal de Pelotas · BRUniversity Medical Center Groningen · NLUniversity of Kentucky · USUniversity of Michigan–Ann Arbor · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe Continuing to Confront COPD International Patient Survey aimed to estimate the prevalence and burden of COPD globally and to update findings from the Confronting COPD International Survey conducted in 1999-2000. MATERIALS AND

methodsChronic obstructive pulmonary disease (COPD) patients in 12 countries worldwide were identified through systematic screening of population samples. Telephone and face-to-face interviews were conducted between November 2012 and May 2013 using a structured survey that incorporated validated patient-reported outcome instruments. Eligible patients were adults aged 40 years and older who were taking regular respiratory medications or suffered with chronic respiratory symptoms and reported either 1) a physician diagnosis of COPD/emphysema, 2) a physician diagnosis of chronic bronchitis, or 3) a symptom-based definition of chronic bronchitis. The burden of COPD was measured with the COPD Assessment Test (CAT) and the modified Medical Research Council (mMRC) Dyspnea Scale.

resultsOf 106,876 households with at least one person aged ≥40 years, 4,343 respondents fulfilled the case definition of COPD and completed the full survey. COPD prevalence ranged from 7% to 12%, with most countries falling within the range of 7%-9%. In all countries, prevalence increased with age, and in all countries except the US was greater among men (range 6%-14%) than among women (range 5%-11%). A significant disease burden was observed when considering COPD symptoms or health status, and showed wide variations across countries. Prevalence of moderate-to-severe dyspnea (mMRC scale ≥2) ranged from 27% to 61%, and mean CAT score ranged from 16.0 to 24.8, indicating medium-to-high impairment.

conclusionThis survey, representing 12 countries, showed similar rates of estimated COPD prevalence across countries that were higher than those reported a decade ago in the original Confronting COPD International Survey. A significant burden of COPD was demonstrated by symptoms and health care-resource use, similar to that reported in the original survey.

Indexed as

AdultAgedAge DistributionAge FactorsBrazilEuropeFemaleHealth SurveysHumansMaleMexicoMiddle AgedPrevalencePulmonary Disease, Chronic ObstructiveRepublic of KoreaRisk Factorschronic obstructive pulmonary diseasepatient perspectivepatient-reported outcomesprevalence

Identifiers

PMID24944511
PMCPMC4057333
OpenAlexW1964975761

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.