Evidence map›Paper›PMID 21803621›Full record

SynthesisSleep medicine reviews2012

Is obstructive sleep apnea associated with cortisol levels? A systematic review of the research evidence.

Lianne M Tomfohr, Kate M Edwards, Joel E Dimsdale

Abstract readSystematic Review
In one paragraph

Synthesis in Sleep medicine reviews, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 7% 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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 69 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Implications of sleep disorders for periodontitis.Sleep & breathing = Schlaf & Atmung · 2023
    Review
  6. Article
  7. Circadian Biology in Obstructive Sleep Apnea.Diagnostics (Basel, Switzerland) · 2021
    Review
  8. Article
  9. Review
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Obstructive sleep apnea and hormones - a novel insight.Archives of medical science : AMS · 2017
    Article
  20. Review
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

3 authors at 1 institution in 1 country.

Lianne M TomfohrSan Diego State University & University of California, San Diego, Joint Doctoral Program in Clinical Psychology, San Diego, UCSD Mail Code 0804, La Jolla, CA, USA. ltomfohr@ucsd.edu
Kate M Edwards
Joel E Dimsdale
University of California, San Diego · US

Funding

STRESS PHYSIOLOGY, DIETARY SALT, AND HYPERTENSIONR01HL036005 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DIMSDALE, JOEL E · 1985 to 2010
$5.1M
SLEEP APNEA &HYPERTENSION--ROLE OF SYMP NERVOUS SYSTEMR01HL044915 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DIMSDALE, JOEL E · 1991 to 2008
$4.7M
Burden of Obstructive Sleep Apnea in Stroke (BOSAST)R01HL091848 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DIMSDALE, JOEL E · 2009 to 2010
$1.2M
NHLBI NIH HHS HL091848NHLBI NIH HHS HL36005NHLBI NIH HHS HL44915NHLBI NIH HHS R01 HL036005NHLBI NIH HHS R01 HL044915NHLBI NIH HHS R01 HL091848
6 · The paper itself

Abstract

The pathophysiology of obstructive sleep apnea (OSA) has been associated with dysregulation of the hypothalamic pituitary adrenal (HPA) axis; however a relationship between OSA and altered cortisol levels has not been conclusively established. We conducted a systematic review using the PRISMA Guidelines based on comprehensive database searches for 1) studies of OSA patients compared to controls in whom cortisol was measured and 2) studies of OSA patients treated with continuous positive airway pressure (CPAP) in whom cortisol was measured pre and post treatment. Five electronic databases were searched along with the reference lists of retrieved studies. The primary outcomes were 1) differences in cortisol between OSA and control subjects and 2) differences in cortisol pre-post CPAP treatment. Sampling methodology, sample timing and exclusion criteria were evaluated. Fifteen studies met the inclusion criteria. Heterogeneity of studies precluded statistical pooling. One study identified differences in cortisol between OSA patients and controls. Two studies showed statistically significant differences in cortisol levels pre-post CPAP. The majority of studies were limited by assessment of cortisol at a single time point. The available studies do not provide clear evidence that OSA is associated with alterations in cortisol levels or that treatment with CPAP changes cortisol levels. Methodological concerns such as infrequent sampling, failure to match comparison groups on demographic factors known to impact cortisol levels (age, body mass index; BMI), and inconsistent control of variables known to influence HPA function may have limited the results.

Indexed as

AdultContinuous Positive Airway PressureFemaleHumansHydrocortisoneMaleMiddle AgedSleep Apnea, ObstructiveHydrocortisone

Identifiers

PMID21803621
PMCPMC3242892
OpenAlexW2030742538

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.