Evidence map›Paper›PMID 37489436›Full record

ArticleClocks & sleep2023

Time Spent Outdoors and Associations with Sleep, Optimism, Happiness and Health before and during the COVID-19 Pandemic in Austria.

Simon Schamilow, Isabel Santonja, Jakob Weitzer, Susanne Strohmaier, Gerhard Klösch, Stefan Seidel, Eva Schernhammer, Kyriaki Papantoniou

Abstract read
In one paragraph

Article in Clocks & sleep, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. 2025 Position statement on active outdoor play.The international journal of behavioral nutrition and physical activity · 2025
    Review
  2. Article
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

8 authors.

Simon SchamilowDepartment of Epidemiology, Center for Public Health, Medical University of Vienna, 1090 Vienna, Austria.
Isabel SantonjaDepartment of Epidemiology, Center for Public Health, Medical University of Vienna, 1090 Vienna, Austria.
Jakob WeitzerDepartment of Epidemiology, Center for Public Health, Medical University of Vienna, 1090 Vienna, Austria.ORCID 0000-0003-0265-4115
Susanne StrohmaierDepartment of Epidemiology, Center for Public Health, Medical University of Vienna, 1090 Vienna, Austria.
Gerhard KlöschDepartment of Neurology, Medical University of Vienna, 1090 Vienna, Austria.ORCID 0000-0001-9280-7319
Stefan SeidelDepartment of Neurology, Medical University of Vienna, 1090 Vienna, Austria.
Eva SchernhammerDepartment of Epidemiology, Center for Public Health, Medical University of Vienna, 1090 Vienna, Austria.ORCID 0000-0002-4337-9415
Kyriaki PapantoniouDepartment of Epidemiology, Center for Public Health, Medical University of Vienna, 1090 Vienna, Austria.ORCID 0000-0002-0340-9659

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Social restriction measures (SRM) implemented during the COVID-19 pandemic led to a reduction in time spent outdoors (TSO). The aim of this study was to describe TSO and evaluate its association with sleep outcomes, optimism, happiness and health-status before and during SRM. Two online surveys were conducted in 2017 (N = 1004) and 2020, during SRM (N = 1010), in samples representative of the age, sex and region of the Austrian population. Information on the duration of TSO, sleep, optimism, happiness and health-status was collected. Multivariable-adjusted logistic regression models were used to study the association of TSO with chronic insomnia, short sleep, late chronotype, optimism, happiness and self-rated health-status. The mean TSO was 3.6 h (SD: 2.18) in 2017 and 2.6 h (SD: 1.87) during times of SRM. Men and participants who were older, married or in a partnership and lived in a rural area reported longer TSO. Participants who spent less time outdoors were more likely to report short sleep or a late chronotype in both surveys and, in 2020, also chronic insomnia. Less TSO was associated with lower happiness and optimism levels and poor health-status. Our findings suggest that TSO may be a protective factor for sleep, mood and health, particularly during stressful and uncertain times.

Indexed as

chronic insomniachronotypedaylightoptimismsleeptime spent outdoors

Identifiers

PMID37489436
PMCPMC10366917

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.