Evidence map›Paper›PMID 31208424›Full record

ArticleRespiratory research2019

Genetic influences on the onset of obstructive sleep apnoea and daytime sleepiness: a twin study.

Marcell Szily, Adam D Tarnoki, David L Tarnoki, Daniel T Kovacs, Bianka Forgo, Jooyeon Lee, Eunae Kim, Joohon Sung, Laszlo Kunos, Martina Meszaros and 2 more

Open access · goldAbstract readTwin Study
In one paragraph

Article in Respiratory research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
3.0field-weighted citation impact, top 8% 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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 42 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
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  7. Review
  8. Clock-Sleep Communication.Current molecular medicine · 2025
    Review
  9. Article
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  11. Article
  12. A Systematic Review of Risk factors for Sleep Apnea.Preventive medicine reports · 2024
    Review
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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

12 authors at 2 institutions in 2 countries.

Marcell SzilyDepartment of Radiology, Semmelweis University, 78/A Ulloi street, 1082, Budapest, Hungary.
Adam D TarnokiDepartment of Radiology, Semmelweis University, 78/A Ulloi street, 1082, Budapest, Hungary. tarnoki2@gmail.com.ORCID http://orcid.org/0000-0001-5909-3780
David L TarnokiDepartment of Radiology, Semmelweis University, 78/A Ulloi street, 1082, Budapest, Hungary.
Daniel T KovacsDepartment of Radiology, Semmelweis University, 78/A Ulloi street, 1082, Budapest, Hungary.
Bianka ForgoDepartment of Radiology, Semmelweis University, 78/A Ulloi street, 1082, Budapest, Hungary.
Jooyeon LeeComplex Disease and Genome Epidemiology Branch, Department of Public Health Science, School of Public Health, Seoul National University, Seoul, Republic of Korea.
Eunae KimComplex Disease and Genome Epidemiology Branch, Department of Public Health Science, School of Public Health, Seoul National University, Seoul, Republic of Korea.
Joohon SungComplex Disease and Genome Epidemiology Branch, Department of Public Health Science, School of Public Health, Seoul National University, Seoul, Republic of Korea.
Laszlo KunosDepartment of Pulmonology, Semmelweis University, Budapest, Hungary.
Martina MeszarosDepartment of Pulmonology, Semmelweis University, Budapest, Hungary.
Veronika MullerDepartment of Pulmonology, Semmelweis University, Budapest, Hungary.
Andras BikovDepartment of Pulmonology, Semmelweis University, Budapest, Hungary.
Semmelweis University · HUSeoul National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundObstructive sleep apnoea (OSA) is one of the major sources of the excessive daily sleepiness, cognitive dysfunction, and it increases cardiovascular morbidity and mortality. Previous studies suggested a possible genetic influence, based on questionnaires but no objective genetic study was conducted to understand the exact variance underpinned by genetic factors.

methodsSeventy-one Hungarian twin pairs involved from the Hungarian Twin Registry (48 monozygotic, MZ and 23 dizygotic, DZ pairs, mean age 51 ± 15 years) underwent overnight polysomnography (Somnoscreen Plus Tele PSG, Somnomedics GMBH, Germany). Apnoea hypopnea index (AHI), respiratory disturbance index (RDI) and oxygen desaturation index (ODI) were registered. Daytime sleepiness was measured with the Epworth Sleepiness Scale (ESS). Bivariate heritability analysis was applied.

resultsThe prevalence of OSA was 41% in our study population. The heritability of the AHI, ODI and RDI ranged between 69% and 83%, while the OSA, defined by an AHI ≥5/h, was itself 73% heritable. The unshared environmental component explained the rest of the variance between 17% and 31%. Daytime sleepiness was mostly determined by the environment, and the variance was influenced in 34% by the additive genetic factors. These associations were present after additional adjustment for body mass index.

conclusionOSA and the indices of OSA severity are heritable, while daytime sleepiness is mostly influenced by environmental factors. Further studies should elucidate whether close relatives of patients with OSA may benefit from early family risk based screening.

Indexed as

SleepinessAdultAgedDiseases in TwinsDisorders of Excessive SomnolenceFemaleGenetic Predisposition to DiseaseHumansHungaryMaleMiddle AgedPolysomnographySleep Apnea, ObstructiveEnvironmentHeritabilitySleep apnoeaSleepiness

Identifiers

PMID31208424
PMCPMC6580623
OpenAlexW2951654213

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.