Evidence map›Paper›PMID 21232152›Full record

ArticleRespiratory research2011

Epidemiology, radiology, and genetics of nicotine dependence in COPD.

Deog Kyeom Kim, Craig P Hersh, George R Washko, John E Hokanson, David A Lynch, John D Newell, James R Murphy, James D Crapo, Edwin K Silverman, COPD Gene Investigators

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in Respiratory research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 3 pooled it
4.2field-weighted citation impact, top 6% 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

30 citing papers in PubMed, 3 syntheses or guidelines pooled it, 85 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. A Narrative Review of the Correlation Between Comorbidity and Acute Exacerbation of COPD Patients.International journal of chronic obstructive pulmonary disease · 2026
    Review
  5. Smoking cessation and vaccination.European respiratory review : an official journal of the European Respiratory Society · 2023
    Article
  6. Article
  7. Article
  8. Observational
  9. Article
  10. Genetic Advances in Chronic Obstructive Pulmonary Disease. Insights from COPDGene.American journal of respiratory and critical care medicine · 2019
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Time to first cigarette and serum cholesterol levels.Social science & medicine (1982) · 2017
    Article
  18. Article
  19. Article
  20. 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

10 authors at 4 institutions in 2 countries.

Deog Kyeom KimChanning Laboratory, Brigham and Women's Hospital, Boston, MA, USA.
Craig P Hersh
George R Washko
John E Hokanson
David A Lynch
John D Newell
James R Murphy
James D Crapo
Edwin K Silverman
COPD Gene Investigators
National Jewish Health · USBrigham and Women's Hospital · USSNUH SMG-SNU Boramae Medical Center · KRUniversity of Colorado Denver · US

Funding

Genetic Epidemiology of COPDU01HL089897 · NHLBI · NATIONAL JEWISH HEALTH · PI CRAPO, JAMES D · 2007 to 2021
$56.9M
Atlanta Clinical and Translational Science Institute (ACTSI) RenewalUL1TR000454 · NCATS · EMORY UNIVERSITY · PI STEPHENS, DAVID S · 2012 to 2016
$25.8M
Genetic Epidemiology of COPDU01HL089856 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI SILVERMAN, EDWIN K · 2007 to 2021
$20.7M
LONG-TERM OXYGEN TREATMENT TRIAL (LOTT) PHARMACOGENOMICS ANCILLARY STUDYR01HL094635 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI HERSH, CRAIG P · 2009 to 2014
$2.2M
Fine Mapping of a COPD Locus on Chromosome 19qK08HL080242 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI HERSH, CRAIG P · 2005 to 2009
$668k
Medical Research Council G0701127NCATS NIH HHS UL1 TR000454NHLBI NIH HHS K08HL080242NHLBI NIH HHS R01HL094635NHLBI NIH HHS U01 HL089856NHLBI NIH HHS U01HL089856NHLBI NIH HHS U01 HL089897NHLBI NIH HHS U01HL089897
6 · The paper itself

Abstract

backgroundCigarette smoking is the principal environmental risk factor for developing COPD, and nicotine dependence strongly influences smoking behavior. This study was performed to elucidate the relationship between nicotine dependence, genetic susceptibility to nicotine dependence, and volumetric CT findings in smokers.

methodsCurrent smokers with COPD (GOLD stage ≥ 2) or normal spirometry were analyzed from the COPDGene Study, a prospective observational study. Nicotine dependence was determined by the Fagerstrom test for nicotine dependence (FTND). Volumetric CT acquisitions measuring the percent of emphysema on inspiratory CT (% of lung <-950 HU) and gas trapping on expiratory CT (% of lung <-856 HU) were obtained. Genotypes for two SNPs in the CHRNA3/5 region (rs8034191, rs1051730) previously associated with nicotine dependence and COPD were analyzed for association to COPD and nicotine dependence phenotypes.

resultsAmong 842 currently smoking subjects (335 COPD cases and 507 controls), 329 subjects (39.1%) showed high nicotine dependence. Subjects with high nicotine dependence had greater cumulative and current amounts of smoking. However, emphysema severity was negatively correlated with the FTND score in controls (ρ = -0.19, p < .0001) as well as in COPD cases (ρ = -0.18, p = 0.0008). Lower FTND score, male gender, lower body mass index, and lower FEV1 were independent risk factors for emphysema severity in COPD cases. Both CHRNA3/5 SNPs were associated with FTND in current smokers. An association of genetic variants in CHRNA3/5 with severity of emphysema was only found in former smokers, but not in current smokers.

conclusionsNicotine dependence was a negative predictor for emphysema on CT in COPD and control smokers. Increased inflammation in more highly addicted current smokers could influence the CT lung density distribution, which may influence genetic association studies of emphysema phenotypes.

Indexed as

Polymorphism, Single NucleotideTomography, X-Ray ComputedAgedAnalysis of VarianceCase-Control StudiesChi-Square DistributionFemaleForced Expiratory VolumeGenetic Predisposition to DiseaseHumansLinear ModelsMaleMiddle AgedNerve Tissue ProteinsPhenotypeProspective StudiesCHRNA5 protein, humanNerve Tissue ProteinsReceptors, Nicotinic

Identifiers

PMID21232152
PMCPMC3033825
OpenAlexW2109580000

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.