Evidence map›Paper›PMID 35362538›Full record

ArticleInternational journal of epidemiology2022

Device-measured sedentary time in Norwegian children and adolescents in the era of ubiquitous internet access: secular changes between 2005, 2011 and 2018.

Knut Eirik Dalene, Elin Kolle, Jostein Steene-Johannessen, Bjørge H Hansen, Ulf Ekelund, May Grydeland, Sigmund Alfred Anderssen, Jakob Tarp

Abstract read
In one paragraph

Article in International journal of epidemiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

8 authors.

Knut Eirik DaleneDepartment of Sports Medicine, Norwegian School of Sports Sciences, Oslo, Norway.ORCID 0000-0002-4401-301X
Elin KolleDepartment of Sports Medicine, Norwegian School of Sports Sciences, Oslo, Norway.
Jostein Steene-JohannessenDepartment of Sports Medicine, Norwegian School of Sports Sciences, Oslo, Norway.
Bjørge H HansenDepartment of Sports Medicine, Norwegian School of Sports Sciences, Oslo, Norway.
Ulf EkelundDepartment of Sports Medicine, Norwegian School of Sports Sciences, Oslo, Norway.
May GrydelandDepartment of Physical Performance, Norwegian School of Sports Sciences, Oslo, Norway.
Sigmund Alfred AnderssenDepartment of Sports Medicine, Norwegian School of Sports Sciences, Oslo, Norway.
Jakob TarpDepartment of Sports Medicine, Norwegian School of Sports Sciences, Oslo, Norway.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAccess to screen-based media has been revolutionized during the past two decades. How this has affected sedentary time (ST) accumulation in children is poorly understood.

methodsThis study, based on the Physical Activity among Norwegian Children Study (PANCS), uses accelerometer data from population-based samples of 9- and 15-year-olds, collected in 2005 (n = 1722), 2011 (n = 1587) and 2018 (n = 1859). Secular changes between surveys were analysed using random-effects linear regression models adjusted for survey-specific factors. Data on ST were collected using hip-worn ActiGraphs and ST was defined using a threshold equivalent to <100 counts/min. Sedentary bouts were grouped by duration: <1, 1-5, 5-15, 15-30 and ≥30 min.

resultsBetween 2005 and 2018, ST increased by 29 min/day in 9-year-old boys (95% CI: 19, 39; P <0.001), by 21 min/day in 15-year-old boys (95% CI: 8, 34; P = 0.002) and by 22 min/day in 15-year-old girls (95% CI: 10, 35; P <0.001), but not in 9-year-old girls at 6 min/day (95% CI: -3, 16; P = 0.191). All age-sex groups accumulated less ST in bouts lasting <5 min and more ST in longer bouts, particularly in 5-15-min bouts. Adolescent girls also increased ST accumulation in 15-30-min and ≥30-min bouts. Changes were largely mirrored before, during and after school on weekdays and during weekend days.

conclusionsCoinciding with the introduction of smartphones, tablets and near-universal internet access, total daily ST and ST accumulated in prolonged sedentary bouts increased between 2005 and 2018 in children and adolescents.

Indexed as

AccelerometrySedentary BehaviorAdolescentChildExerciseFemaleHumansInfant, NewbornInternet AccessMaleSchoolsaccelerometeradolescentschildrenphysical activityscreen-timesecular changeSedentary

Identifiers

PMID35362538
PMCPMC9557841

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Registered trials

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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.