Evidence map›Paper›PMID 34596745›Full record

SynthesisJournal of neurology2022

Sleep-disordered breathing-related symptoms and risk of stroke: cohort study and Mendelian randomization analysis.

Olga E Titova, Shuai Yuan, John A Baron, Eva Lindberg, Karl Michaëlsson, Susanna C Larsson

Abstract readMeta-Analysis
In one paragraph

Synthesis in Journal of neurology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 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.

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

15 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. 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

6 authors.

Olga E TitovaUnit of Medical Epidemiology, Department of Surgical Sciences, The EpiHub, Uppsala University, Dag Hammarskjölds väg 14 B, 75185, Uppsala, Sweden.
Shuai YuanUnit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
John A BaronUnit of Medical Epidemiology, Department of Surgical Sciences, The EpiHub, Uppsala University, Dag Hammarskjölds väg 14 B, 75185, Uppsala, Sweden.
Eva LindbergDepartment of Medical Sciences, Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden.
Karl MichaëlssonUnit of Medical Epidemiology, Department of Surgical Sciences, The EpiHub, Uppsala University, Dag Hammarskjölds väg 14 B, 75185, Uppsala, Sweden.
Susanna C LarssonUnit of Medical Epidemiology, Department of Surgical Sciences, The EpiHub, Uppsala University, Dag Hammarskjölds väg 14 B, 75185, Uppsala, Sweden. susanna.larsson@surgsci.uu.se.ORCID http://orcid.org/0000-0003-0118-0341

Funding

Hjärt-Lungfonden 20190247Swedish Research Council for Health, Working Life and Welfare 2018-00123Vetenskapsrådet 2016-01042Vetenskapsrådet 2019-00977
6 · The paper itself

Abstract

backgroundSleep-disordered breathing (SDB) may contribute to development of stroke. However, findings are inconclusive. We investigated whether SDB-related symptoms are associated with incidence of stroke and its types in a general community sample of adult men and women as well as to perform Mendelian randomization (MR) analysis.

methodsWe used data from a cohort of 41,742 Swedish adults (56-94 years of age) who completed questionnaires regarding snoring, cessation of breathing, lifestyle and health characteristics. Participants were followed up for incident stroke and death over 8 years through linkage to the Swedish Registers. Hazard ratios, adjusted for potential confounders, were estimated by Cox proportional hazards regression. MR analyses were performed using single-nucleotide polymorphisms associated with sleep apnea at the genome-wide significance level and summary-level data for stroke and its subtypes from consortia and a meta-analysis of Genome-Wide Association Studies.

resultsIn the cohort study, symptoms of disturbing snoring and/or cessation of breathing were associated with increased risk of total stroke (hazard ratio 1.12, 95% confidence interval 1.02-1.24) and intracerebral hemorrhage (hazard ratio 1.59, 95% confidence interval 1.23-2.05) but not with ischemic stroke or subarachnoid hemorrhage. MR analyses showed no association of genetic liability to sleep apnea with the risk of overall stroke or any specific types of stroke or ischemic stroke subtypes.

conclusionsSDB-related symptoms were associated with increased risk of total stroke, specifically intracerebral hemorrhage, in the observational analyses but not in the MR analyses. There was limited evidence of an association of SDB with ischemic stroke and subarachnoid hemorrhage.

Indexed as

Ischemic StrokeSleep Apnea SyndromesStrokeSubarachnoid HemorrhageAdultCerebral HemorrhageCohort StudiesFemaleGenome-Wide Association StudyHumansMaleMendelian Randomization AnalysisRisk FactorsSnoringCohortMendelian randomizationSingle-nucleotide polymorphismsSleep-disordered breathingStroke

Identifiers

PMID34596745
PMCPMC9021054

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.