Evidence map›Paper›PMID 23553209›Full record

ArticleEuropean journal of epidemiology2013

Sleep characteristics and cardiovascular events in a large Swedish cohort.

Anna Westerlund, Rino Bellocco, Johan Sundström, Hans-Olov Adami, Torbjörn Åkerstedt, Ylva Trolle Lagerros

Abstract read
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In one paragraph

Article in European journal of epidemiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 10 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 10 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

59 citing papers in PubMed, 10 syntheses or guidelines pooled it.

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  18. Naps and cardiovascular disease risk in different age and sex groups: evidence from a large community cohort.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2024
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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

6 authors.

Anna WesterlundDepartment of Medicine Solna, Clinical Epidemiology Unit, Karolinska Institutet, Eugeniahemmet T2, 171 76 Stockholm, Sweden. anna.k.westerlund@ki.se
Rino Bellocco
Johan Sundström
Hans-Olov Adami
Torbjörn Åkerstedt
Ylva Trolle Lagerros

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Limited evidence suggests that the association between sleep duration and cardiovascular events is strongest in individuals who also report sleep disturbances. We investigated sleep duration and insomnia symptoms in relation to incident cardiovascular events in the Swedish National March Cohort comprising 41,192 adults. Habitual sleep duration and difficulty falling asleep, difficulty maintaining sleep, early morning awakening, and nonrestorative sleep were self-reported in 1997. During 13.2 years of follow-up, we identified 4,031 events (myocardial infarction, stroke, heart failure, or death from cardiovascular disease) in the Swedish National Patient Register and the Cause of Death Register. After adjustment for potential confounders, short sleep duration (≤5 h) was associated with slightly increased risks of overall cardiovascular events and, specifically, myocardial infarction: hazard ratio, HR (95% confidence interval) 1.24 (1.06-1.44) and 1.42 (1.15-1.76), respectively. These HRs were attenuated as we included BMI, depressive symptoms and other relevant covariates in our analysis. Insomnia symptoms per se were unrelated to risk. However, in a joint analysis, there was some evidence that short sleepers who reported frequent insomnia symptoms had the highest HRs (1.26-1.39) of overall cardiovascular events. Short sleep or insomnia symptoms without the other conferred no increased risk. Our results suggest that symptoms of sleep disturbance should be taken into account when assessing the association between short sleep and cardiovascular disease.

Indexed as

AdolescentAdultAgedAged, 80 and overCardiovascular DiseasesConfidence IntervalsFemaleFollow-Up StudiesHumansIncidenceLife StyleMaleMiddle AgedProportional Hazards ModelsProspective StudiesRegistries

Identifiers

PMID23553209

What OpenQuestion holds

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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.