Evidence map›Paper›PMID 27785006›Full record

ArticleInternational journal of chronic obstructive pulmonary disease2016

Socioeconomic status and COPD among low- and middle-income countries.

Matthew Grigsby, Trishul Siddharthan, Muhammad Ah Chowdhury, Ali Siddiquee, Adolfo Rubinstein, Edgardo Sobrino, J Jaime Miranda, Antonio Bernabe-Ortiz, Dewan Alam, William Checkley

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in International journal of chronic obstructive pulmonary disease, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 6 pooled it
12.3field-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

71 citing papers in PubMed, 6 syntheses or guidelines pooled it, 118 citations in OpenAlex.

  1. Muscle sympathetic nerve activity in COPD: a systematic review and meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2026
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11 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 6 institutions in 6 countries.

Matthew GrigsbyDivision of Pulmonary and Critical Care, School of Medicine; Program in Global Disease Epidemiology and Control, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA.
Trishul SiddharthanDivision of Pulmonary and Critical Care, School of Medicine.
Muhammad Ah ChowdhuryCentre for Control of Chronic Diseases, icddr,b, Dhaka, Bangladesh.
Ali SiddiqueeCentre for Control of Chronic Diseases, icddr,b, Dhaka, Bangladesh.
Adolfo RubinsteinInstitute for Clinical Effectiveness and Health Policy, Buenos Aires, Argentina.
Edgardo SobrinoInstitute for Clinical Effectiveness and Health Policy, Buenos Aires, Argentina.
J Jaime MirandaCRONICAS Centre of Excellence for Chronic Diseases, Universidad Peruana Cayetano Heredia; Department of Medicine, School of Medicine, Universidad Peruana Cayetano Heredia, Lima, Peru.
Antonio Bernabe-OrtizCRONICAS Centre of Excellence for Chronic Diseases, Universidad Peruana Cayetano Heredia.
Dewan AlamFaculty of Health, School of Kinesiology and Health Science, York University, Toronto, ON, Canada.
William CheckleyDivision of Pulmonary and Critical Care, School of Medicine; Program in Global Disease Epidemiology and Control, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA.
Bloomberg (United States) · USCentre for Chronic Disease Control · INInstituto de Efectividad Clínica y Sanitaria · ARUniversidad Peruana Cayetano Heredia · PEPulmonary and Critical Care Associates · USYork University · CA

Funding

Fogarty International Clinical Research Scholars Support Center @ Vanderbilt-AAMCR24TW007988 · FIC · VANDERBILT UNIVERSITY · PI VERMUND, STEN H. · 2007 to 2011
$27.6M
Fogarty Global Health Fellows Coordinating CenterR25TW009340 · FIC · UNIV OF NORTH CAROLINA CHAPEL HILL · PI CHI, BENJAMIN H. · 2012 to 2016
$6.9M
Acute Lung Injury: Application of Novel Approaches to Longitudinal Data AnalysisR00HL096955 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI CHECKLEY, WILLIAM · 2011 to 2013
$723k
FIC NIH HHS R24 TW007988FIC NIH HHS R25 TW009340NHLBI NIH HHS HHSN268200900033CNHLBI NIH HHS R00 HL096955
6 · The paper itself

Abstract

backgroundSocioeconomic status (SES) is a strong social determinant of health. There remains a limited understanding of the association between SES and COPD prevalence among low- and middle-income countries where the majority of COPD-related morbidity and mortality occurs. We examined the association between SES and COPD prevalence using data collected in Argentina, Bangladesh, Chile, Peru, and Uruguay.

methodsWe compiled lung function, demographic, and SES data from three population-based studies for 11,042 participants aged 35-95 years. We used multivariable alternating logistic regressions to study the association between COPD prevalence and SES indicators adjusted for age, sex, self-reported daily smoking, and biomass fuel smoke exposure. Principal component analysis was performed on monthly household income, household size, and education to create a composite SES index.

resultsOverall COPD prevalence was 9.2%, ranging from 1.7% to 15.4% across sites. The adjusted odds ratio of having COPD was lower for people who completed secondary school (odds ratio [OR] =0.73, 95% CI 0.55-0.98) and lower with higher monthly household income (OR =0.96 per category, 95% CI 0.93-0.99). When combining SES factors into a composite index, we found that the odds of having COPD was greater with lower SES (interquartile OR =1.23, 95% CI 1.05-1.43) even after controlling for subject-specific factors and environmental exposures.

conclusionIn this analysis of multiple population-based studies, lower education, lower household income, and lower composite SES index were associated with COPD. Since household income may be underestimated in population studies, adding household size and education into a composite index may provide a better surrogate for SES.

Indexed as

Developing CountriesHealth Status DisparitiesPovertySocioeconomic FactorsAdultAgedAged, 80 and overBangladeshEducational StatusFamily CharacteristicsFemaleHumansIncomeLinear ModelsLogistic ModelsMaleCOPDlow- and middle-income countrysocioeconomic status

Identifiers

PMID27785006
PMCPMC5065097
OpenAlexW2529065146

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.