Evidence map›Paper›PMID 23980521›Full record

ArticleAmerican journal of respiratory and critical care medicine2013

Distinct quantitative computed tomography emphysema patterns are associated with physiology and function in smokers.

Peter J Castaldi, Raúl San José Estépar, Carlos S Mendoza, Craig P Hersh, Nan Laird, James D Crapo, David A Lynch, Edwin K Silverman, George R Washko

Open access · greenAbstract read
In one paragraph

Article in American journal of respiratory and critical care medicine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 3 pooled it
11.4field-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

81 citing papers in PubMed, 3 syntheses or guidelines pooled it, 134 citations in OpenAlex.

  1. Pooled it
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  3. An official American Thoracic Society/European Respiratory Society statement: research questions in COPD.European respiratory review : an official journal of the European Respiratory Society · 2015
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21 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 5 institutions in 3 countries.

Peter J Castaldi1 Channing Division of Network Medicine.
Raúl San José Estépar
Carlos S Mendoza
Craig P Hersh
Nan Laird
James D Crapo
David A Lynch
Edwin K Silverman
George R Washko
Brigham and Women's Hospital · USGeneral Department of Preventive Medicine · VNHarvard University · USNational Jewish Health · USUniversidad de Sevilla · ES

Funding

Genetic Epidemiology of COPDU01HL089897 · NHLBI · NATIONAL JEWISH HEALTH · PI CRAPO, JAMES D · 2007 to 2021
$56.9M
Metabolomic signatures of empysema and COPD progression in the COPDGene cohortR01HL089897 · NHLBI · NATIONAL JEWISH HEALTH · PI CRAPO, JAMES D · 2012 to 2016
$31.1M
Genetic Epidemiology of COPDU01HL089856 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI SILVERMAN, EDWIN K · 2007 to 2021
$20.7M
(2 of 2) Genetic Epidemiology of COPDR01HL089856 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI SILVERMAN, EDWIN K · 2012 to 2016
$18.9M
Systems Biology, Bioinformatics, and BiostatisticsP01HL105339 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI SILVERMAN, EDWIN K · 2011 to 2015
$12.2M
Airway Inspector: a chest imaging biomarker software platform for COPDR01HL116931 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI SAN JOSE ESTEPAR, RAUL · 2013 to 2017
$2.2M
Computed Tomographic characterization of subjects enrolled in the STATCOPE trialR01HL107246 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI WASHKO, GEORGE R · 2011 to 2014
$1.7M
CT-based Phenotype for Airway Remodeling in COPD based on Airway Wall Density PowK25HL104085 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI SAN JOSE ESTEPAR, RAUL · 2010 to 2014
$765k
Using Computed Tomographic Imaging as a biomarker for Clinical COPD ResearchK23HL089353 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI WASHKO, GEORGE R · 2008 to 2012
$713k
Predictive Modeling with Clinical and Genomic Data in COPDK08HL102265 · NHLBI · TUFTS MEDICAL CENTER · PI CASTALDI, PETER · 2010 to 2014
$641k
NHLBI NIH HHS HL107246-03NHLBI NIH HHS K08 HL102265NHLBI NIH HHS K08HL102265NHLBI NIH HHS K23 HL089353NHLBI NIH HHS K23HL089353NHLBI NIH HHS K25 HL104085NHLBI NIH HHS K25HL104085NHLBI NIH HHS P01 HL105339NHLBI NIH HHS P01HL105339NHLBI NIH HHS R01 HL089856NHLBI NIH HHS R01HL089856NHLBI NIH HHS R01 HL089897NHLBI NIH HHS R01HL089897NHLBI NIH HHS R01 HL107246NHLBI NIH HHS R01 HL116931NHLBI NIH HHS R01HL116931NHLBI NIH HHS U01 HL089856NHLBI NIH HHS U01 HL089897
6 · The paper itself

Abstract

rationaleEmphysema occurs in distinct pathologic patterns, but little is known about the epidemiologic associations of these patterns. Standard quantitative measures of emphysema from computed tomography (CT) do not distinguish between distinct patterns of parenchymal destruction.

objectivesTo study the epidemiologic associations of distinct emphysema patterns with measures of lung-related physiology, function, and health care use in smokers.

methodsUsing a local histogram-based assessment of lung density, we quantified distinct patterns of low attenuation in 9,313 smokers in the COPDGene Study. To determine if such patterns provide novel insights into chronic obstructive pulmonary disease epidemiology, we tested for their association with measures of physiology, function, and health care use. MEASUREMENTS AND MAIN

resultsCompared with percentage of low-attenuation area less than -950 Hounsfield units (%LAA-950), local histogram-based measures of distinct CT low-attenuation patterns are more predictive of measures of lung function, dyspnea, quality of life, and health care use. These patterns are strongly associated with a wide array of measures of respiratory physiology and function, and most of these associations remain highly significant (P < 0.005) after adjusting for %LAA-950. In smokers without evidence of chronic obstructive pulmonary disease, the mild centrilobular disease pattern is associated with lower FEV1 and worse functional status (P < 0.005).

conclusionsMeasures of distinct CT emphysema patterns provide novel information about the relationship between emphysema and key measures of physiology, physical function, and health care use. Measures of mild emphysema in smokers with preserved lung function can be extracted from CT scans and are significantly associated with functional measures.

Indexed as

AgedCohort StudiesDyspneaFemaleHealth ServicesHumansLungMaleMiddle AgedPulmonary EmphysemaQuality of LifeSeverity of Illness IndexSmokingSpirometryTomography, Spiral Computed

Identifiers

PMID23980521
PMCPMC3863741
OpenAlexW2006967044

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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.