Evidence map›Paper›PMID 32907578›Full record

ArticleBMC public health2020

Changes in self-reported sleep duration with age - a 36-year longitudinal study of Finnish adults.

Christer Hublin, Lassi Haasio, Jaakko Kaprio

Abstract read
In one paragraph

Article in BMC public health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–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

17 citing papers in PubMed.

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  13. Sympathetic neural responses to sleep disorders and insufficiencies.American journal of physiology. Heart and circulatory physiology · 2022
    Review
  14. Article
  15. Article
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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

3 authors.

Christer HublinFinnish Institute of Occupational Health, University of Helsinki, Helsinki, Finland.
Lassi HaasioDepartment of Public Health, University of Helsinki, Helsinki, Finland.
Jaakko KaprioDepartment of Public Health, University of Helsinki, Helsinki, Finland. jaakko.kaprio@helsinki.fi.ORCID http://orcid.org/0000-0002-3716-2455

Funding

Academy of Finland 265240, 263278, 308248, 312073
6 · The paper itself

Abstract

backgroundSleep deprivation is often claimed to be increasingly common, but most studies show small changes in sleep duration over the last decades. Our aim was to analyze long-term patterns in self-reported sleep duration in a population-based cohort.

methodsMembers of the Older Finnish Twin Cohort have responded to questionnaires in 1975 (N = 30,915 individuals, response rate 89%, mean age 36 years), 1981 (24,535, 84%, 41 years), 1990 (12,450, 77%, 44 years), and 2011 (8334, 72%, 60 years). Weibull regression models were used to model the effects of follow-up time and age simultaneously.

resultsSleep duration has decreased in all adult age groups and in both genders. The mean duration was in men 7.57 h in 1975 and 7.39 in 2011, and in women 7.69 and 7.37, respectively. The decrease was about 0.5 min in men and 0.9 in women per year of follow-up. In the age-group 18-34 years, mean sleep length was 7.69 h in 1975 and 7.53 in 1990. Among 35-54-year-old it was 7.57 h in 1975 and 7.34 in 2011, and in the age group of 55+ year olds 7.52 and 7.38, correspondingly. The change was largest in middle-aged group: about 23 min or about 0.6 min per year of follow-up.

conclusionsThere has been a slight decrease in mean sleep duration during the 36-year follow-up. Although the sleep duration was longer in 1970s and 1980s, the probable main cause for the change in this study population is the effect of aging.

Indexed as

AgingSleepAdolescentAdultAgedAged, 80 and overCohort StudiesFemaleFinlandHumansLongitudinal StudiesMaleMiddle AgedSelf ReportSleep DeprivationSleep Wake DisordersLongitudinal studyPopulationSleep lengthSleep ontogenyWeibull regression models

Identifiers

PMID32907578
PMCPMC7487757

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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.