Evidence map›Paper›PMID 18276938›Full record

ArticleAmerican journal of respiratory and critical care medicine2008

Sleep-disordered breathing and cardiovascular disease: an outcome-based definition of hypopneas.

Naresh M Punjabi, Anne B Newman, Terry B Young, Helaine E Resnick, Mark H Sanders

Registry-linked trialAbstract read
In one paragraph

Article in American journal of respiratory and critical care medicine, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00005275 (The Sleep Heart Health Study), which is not on this map. Cited by 121 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
121citing papers in PubMed, 6 pooled it
–field-weighted citation impact
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.

NCT00005275 completednot on this map

The Sleep Heart Health Study (SHHS) Was a Multi-site Prospective Cohort Study to Investigate Obstructive Sleep Apnea (OSA) and Other Sleep-disordered Breathing (SDB) as Risk Factors for Cardiovascular Diseases and Hypertension

TypeobservationalSponsorJohns Hopkins Bloomberg School of Public HealthRan1994 to 2011Enrolled6,441ConditionsLung Diseases, Sleep Apnea Syndromes, Cardiovascular Diseases, Heart Diseases
3 · Its place in the literature

Who cites it

121 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Effect of Varying Definitions of Hypopnea on the Diagnosis and Clinical Outcomes of Sleep-Disordered Breathing: A Systematic Review and Meta-Analysis.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2019
    Pooled it
  5. Pooled it
  6. Guideline
  7. Trial
  8. Trial
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  13. Article
  14. Article
  15. Article
  16. Smartwatch-based detection of moderate-to-severe and high-risk obstructive sleep apnea.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2026
    Observational
  17. Article
  18. Redefining Obstructive Sleep Apnea: Multidimensional Phenotyping Beyond the Apnea-Hypopnea Index.Pathophysiology : the official journal of the International Society for Pathophysiology · 2026
    Review
  19. Observational
  20. Insights, recommendations, and research priorities for central sleep apnea: report from an expert panel.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2025
    Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Naresh M PunjabiDivision of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, 5501 Hopkins Bayview Circle, Baltimore, MD 21224, USA. npunjabi@jhmi.edu
Anne B Newman
Terry B Young
Helaine E Resnick
Mark H Sanders

Funding

THE SLEEP HEART HEALTH STUDY: READING CENTER APPLICATIONU01HL063463 · NHLBI · CASE WESTERN RESERVE UNIVERSITY · PI REDLINE, SUSAN S. · 1999 to 2007
$2.8M
The Sleep Heart Health Study (SHHS)U01HL053938 · NHLBI · UNIVERSITY OF ARIZONA · PI QUAN, STUART F. · 1994 to 2007
$2.0M
SLEEP HEART HEALTH STUDYU01HL053931 · NHLBI · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI RAPOPORT, DAVID M. · 1994 to 2003
$1.9M
THE SLEEP HEART HEALTH STUDYU01HL053937 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI PUNJABI, NARESH · 1994 to 2007
$1.6M
SLEEP HEART HEALTH STUDYU01HL063429 · NHLBI · MISSOURI BREAKS RESEARCH, INC. · PI RESNICK, HELAINE E. · 1999 to 2007
$1.5M
SLEEP HEART HEALTH STUDYU01HL053916 · NHLBI · UNIVERSITY OF CALIFORNIA DAVIS · PI ROBBINS, JOHN A · 1994 to 2007
$1.5M
THE SLEEP HEART HEALTH STUDYU01HL053934 · NHLBI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI SHAHAR, EYAL · 1994 to 2007
$1.4M
SLEEP HEART HEALTH STUDYU01HL053941 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI O'CONNOR, GEORGE T · 1994 to 2007
$1.4M
CARDIOVASCULAR CONSEQUENCES OF SLEEP APNEAU01HL053940 · NHLBI · UNIVERSITY OF WASHINGTON · PI WAHL, PATRICIA W · 1994 to 1998
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NHLBI NIH HHS U01-HL53916NHLBI NIH HHS U01-HL53931NHLBI NIH HHS U01-HL53934NHLBI NIH HHS U01-HL53937NHLBI NIH HHS U01-HL53938NHLBI NIH HHS U01-HL53940NHLBI NIH HHS U01-HL53941NHLBI NIH HHS U01-HL63429NHLBI NIH HHS U01-HL63463
6 · The paper itself

Abstract

rationaleEpidemiologic studies on the consequences of sleep-disordered breathing invariably use the apnea-hypopnea index as the primary measure of disease severity. Although hypopneas constitute a majority of disordered breathing events, significant controversy remains about the best criteria used to define these events.

objectivesThe current investigation sought to assess the most appropriate definition for hypopneas that would be best correlated with cardiovascular disease.

methodsA community sample of middle-aged and older adults was recruited as part of the Sleep Heart Health Study. Full-montage polysomnography was conducted and hypopneas were defined using different thresholds of oxyhemoglobin desaturation with and without arousals. Prevalent cardiovascular disease was assessed based on self-report. Logistic regression analysis was used to characterize the independent association between the hypopnea index and prevalent cardiovascular disease. MEASUREMENTS AND MAIN

resultsUsing a sample of 6,106 adults with complete data on cardiovascular disease status and polysomnography, the current study found that hypopneas associated with an oxyhemoglobin desaturation of 4% or more were associated with prevalent cardiovascular disease independent of confounding covariates. The adjusted prevalent odds ratios for quartiles of the hypopnea index using a 4% desaturation criterion were as follows: 1.00 (<1.10 events/h), 1.10 (1.01-3.20 events/h), 1.33 (3.21-7.69 events/h), and 1.41 (>7.69 events/h). Hypopnea measures based on less than 4% oxyhemoglobin desaturation or presence of arousals showed no association with cardiovascular disease.

conclusionsHypopneas comprise a significant component of sleep-disordered breathing in the general community. By varying the criteria for defining hypopneas, this study demonstrates that hypopneas with a desaturation of at least 4% are independently associated with cardiovascular disease. In contrast, no association was observed between cardiovascular disease and hypopneas associated with milder desaturations or arousals.

Indexed as

AgedApneaCardiovascular DiseasesCohort StudiesFemaleHumansMaleMiddle AgedOdds RatioOxyhemoglobinsPolysomnographySleep Apnea SyndromesTerminology as TopicOxyhemoglobins

Identifiers

PMID18276938
PMCPMC2383996

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Registered trials

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.