Evidence map›Paper›PMID 33870164›Full record

ArticleSleep medicine: X2019

Insomnia, sleep duration and academic performance: a national survey of Norwegian college and university students.

Øystein Vedaa, Eilin K Erevik, Mari Hysing, Amie C Hayley, Børge Sivertsen

Open access · goldAbstract read
In one paragraph

Article in Sleep medicine: X, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
4.8field-weighted citation impact, top 5% 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

24 citing papers in PubMed, 56 citations in OpenAlex.

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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

5 authors at 3 institutions in 2 countries.

Øystein VedaaDepartment of Health Promotion, Norwegian Institute of Public Health, Bergen, Norway.
Eilin K ErevikDepartment of Psychosocial Science, Faculty of Psychology, University of Bergen, Norway.
Mari HysingDepartment of Psychosocial Science, Faculty of Psychology, University of Bergen, Norway.
Amie C HayleyCentre for Human Psychopharmacology, Swinburne University of Technology, Hawthorn, Victoria, Australia.
Børge SivertsenDepartment of Health Promotion, Norwegian Institute of Public Health, Bergen, Norway.
Norwegian Institute of Public Health · NOUniversity of Bergen · NOInstitute for Breathing and Sleep · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe aim of this study was to evaluate the associations between insomnia, sleep duration and self-reported academic performance/failure in a large sample of Norwegian college and university students.

methodsThis cross-sectional survey comprised 50,054 full-time students (69% women) aged 18-35 years (mean age 23.2, standard deviation (SD) = 3.3), with a response rate of 31%. Binary logistic regression analyses were conducted to examine the associations between the independent variables, an approximation of the insomnia disorder and sleep duration, and the dependent variables, failed examinations and delayed study progress.

resultsThe results showed that insomnia was associated with a higher risk of failed examinations (adjusted for background variables, odds ratio (OR

Indexed as

Academic performanceInsomniaSleep durationStudent

Identifiers

PMID33870164
PMCPMC8041108
OpenAlexW2954847108

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.