Evidence map›Paper›PMID 20399325›Full record

ArticleThe American journal of medicine2010

Lung function in young adults predicts airflow obstruction 20 years later.

Ravi Kalhan, Alexander Arynchyn, Laura A Colangelo, Mark T Dransfield, Lynn B Gerald, Lewis J Smith

Abstract read
In one paragraph

Article in The American journal of medicine, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

23 citing papers in PubMed, 49 citations in OpenAlex.

  1. Trial
  2. Review
  3. Progenitor Resilience and the Early Onset of Chronic Lung Diseases: NHLBI workshop report.American journal of respiratory cell and molecular biology · 2026
    Article
  4. Article
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Childhood Origins of Adult Lung Disease as Opportunities for Prevention.The journal of allergy and clinical immunology. In practice · 2020
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Defining Impaired Respiratory Health. A Paradigm Shift for Pulmonary Medicine.American journal of respiratory and critical care medicine · 2018
    Review
  17. Article
  18. Review
  19. The ordinary work environment increases symptoms from eyes and airways in mild steel welders.International archives of occupational and environmental health · 2015
    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

6 authors at 4 institutions in 2 countries.

Ravi KalhanNorthwestern University, Chicago, IL 60611, USA.
Alexander Arynchyn
Laura A Colangelo
Mark T Dransfield
Lynn B Gerald
Lewis J Smith
Northwestern University · PHUniversity of Alabama at Birmingham · USNorthwestern University · USUniversity of Arizona · US

Funding

VASCULAR CALCIUM--AN EPIDEMIOLOGIC STUDYR01HL048050 · NHLBI · UNIVERSITY OF IOWA · PI MAHONEY, LARRY T · 1992 to 2004
$3.0M
REGULATION OF LUNG SURFACTANT PROTEIN B GENE EXPRESSIONR01HL048048 · NHLBI · UNIVERSITY OF TEXAS HLTH CTR AT TYLER · PI BOGGARAM, VIJAYAKUMAR · 1998 to 2006
$1.3M
CORONARY ARTERY DISEASE RISK DEVELOPMENT IN YOUNG ADULTS-N01HC95095-268095095N01HC095095 · HC · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI WILLIAMS, DALE · 1989 to 2006
$376k
CORONARY HEART DISEASE RISK IN YOUNG ADULTSN01HC048047 · HC · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI LEWIS, CORA E · 1985 to 2000
$171k
STUDY CORONARY HEART DISEASE RISK IN YOUNG ADULTSN01HC048050 · HC · KAISER FOUNDATION RESEARCH INSTITUTE · PI SIDNEY, STEPHEN · 1985 to 2000
$102k
STUDY CORONARY HEART DISEASE RISK IN YOUNG ADULTSN01HC048049 · HC · NORTHWESTERN UNIVERSITY · PI LIU, KIANG JOHN · 1985 to 2000
$71k
STUDY CORONARY HEART DISEASE RISK IN YOUNG ADULTSN01HC048048 · HC · UNIVERSITY OF MINNESOTA TWIN CITIES · PI SCHREINER, PAMELA J · 1985 to 2000
$53k
REGULATION OF LUNG SURFACTANT PROTEIN B GENE EXPRESSIONR29HL048048 · NHLBI · UNIVERSITY OF TEXAS HLTH CTR AT TYLER · PI BOGGARAM, VIJAYAKUMAR · 1993 to 1997
–
RETROVIRAL TRANSDUCTION OF CLASS I MHC GENER01HL048049 · NHLBI · MASSACHUSETTS GENERAL HOSPITAL · PI SACHS, DAVID H · 1993 to 1997
–
CARDIA-ECHOCARDIOGRAPHY READINGN01HC045134 · HC · UNIVERSITY OF CALIFORNIA IRVINE · PI GARDIN, JULIUS M · 1994 to 2000
–
NHLBI NIH HHS N01 HC045134NHLBI NIH HHS N01-HC045134NHLBI NIH HHS N01 HC048047NHLBI NIH HHS N01 HC048048NHLBI NIH HHS N01 HC048049NHLBI NIH HHS N01 HC048050NHLBI NIH HHS N01 HC095095NHLBI NIH HHS N01-HC-48047NHLBI NIH HHS N01-HC-48048NHLBI NIH HHS N01-HC-48049NHLBI NIH HHS N01-HC-48050NHLBI NIH HHS N01-HC-95095
6 · The paper itself

Abstract

objectiveThe burden of obstructive lung disease is increasing, yet there are limited data on its natural history in young adults. To determine in a prospective cohort of generally healthy young adults the influence of early adult lung function on the presence of airflow obstruction in middle age.

methodsA longitudinal study was performed of 2496 adults who were 18 to 30 years of age at entry, did not report having asthma, and returned at year 20. Airflow obstruction was defined as an forced expiratory volume in 1 second/forced vital capacity ratio less than the lower limit of normal.

resultsAirflow obstruction was present in 6.9% and 7.8% of participants at years 0 and 20, respectively. Less than 10% of participants with airflow obstruction self-reported chronic obstructive pulmonary disease. In cross-sectional analyses, airflow obstruction was associated with less education, smoking, and self-reported chronic obstructive pulmonary disease. Low forced expiratory volume in 1 second, forced expiratory volume in 1 second/forced vital capacity ratio, and airflow obstruction in young adults were associated with low lung function and airflow obstruction 20 years later. Of those with airflow obstruction at year 0, 52% had airflow obstruction 20 years later. The forced expiratory volume in 1 second/forced vital capacity at year 0 was highly predictive of airflow obstruction 20 years later (c-statistic 0.91; 95% confidence interval, 0.89-0.93). The effect of cigarette smoking on lung function decline with age was most evident in young adults with preexisting airflow obstruction.

conclusionAirflow obstruction is mostly unrecognized in young and middle-aged adults. Low forced expiratory volume in 1 second, low forced expiratory volume in 1 second/forced vital capacity ratio, airflow obstruction in young adults, and smoking are highly predictive of low lung function and airflow obstruction in middle age.

Indexed as

AdolescentAdultFemaleForced Expiratory VolumeHumansLongitudinal StudiesMalePulmonary Disease, Chronic ObstructiveSmokingTime FactorsVital CapacityAirflow obstructionCARDIAchronic obstructive pulmonary diseaseCOPDnatural history

Identifiers

PMID20399325
PMCPMC2858051
OpenAlexW2008027735

What OpenQuestion holds

Textmetadata
LicenceTDM
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.