Evidence map›Paper›PMID 23283154›Full record

ArticleThe Journal of adolescent health : official publication of the Society for Adolescent Medicine2012

Predictors and health consequences of screen-time change during adolescence--1993 Pelotas (Brazil) birth cohort study.

Samuel Carvalho Dumith, Leandro Martin Totaro Garcia, Kelly Samara da Silva, Ana Maria Baptista Menezes, Pedro Curi Hallal

Abstract read
In one paragraph

Article in The Journal of adolescent health : official publication of the Society for Adolescent Medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 3 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

18 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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  15. Cohorts in low- and middle-income countries: from still photographs to full-length movies.The Journal of adolescent health : official publication of the Society for Adolescent Medicine · 2012
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  16. Prospective findings from the 1993 Pelotas (Brazil) birth cohort study.The Journal of adolescent health : official publication of the Society for Adolescent Medicine · 2012
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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.

Samuel Carvalho DumithDepartment of Population and Health, Federal University of Rio Grande, Rio Grande, Brazil. scdumith@yahoo.com.br
Leandro Martin Totaro Garcia
Kelly Samara da Silva
Ana Maria Baptista Menezes
Pedro Curi Hallal

Funding

Wellcome Trust
6 · The paper itself

Abstract

purposeTo investigate screen-time change from early to mid adolescence, its predictors, and its influence on body fat, blood pressure, and leisure-time physical activity.

methodsWe used data from a longitudinal prospective study, conducted among participants of the 1993 Pelotas (Brazil) Birth Cohort Study. At baseline, adolescents were, on average, 11 years old. They were later visited at age 15 years. Screen time was self-reported, accounting for the time spent watching television, playing video games, and using the computer. Several predictors were examined. The effect of screen-time change on some health outcomes was also analyzed.

resultsScreen time increased on average 60 min/d from 11 to 15 years of age, for the 4,218 adolescents studied. The groups that presented the highest increases in screen time were male, wealthiest, those whose mothers had higher education, and adolescents with a history of school failure. There were positive associations between screen-time change and body mass index, skinfold thickness, waist circumference, and leisure-time physical activity at 15 years of age.

conclusionsScreen time increased from early to mid adolescence. This increment was higher among boys and the wealthiest adolescents. Increases in screen time affected body composition, with negative implications on adiposity.

Indexed as

AdiposityLeisure ActivitiesSedentary BehaviorTelevisionAdolescentAdolescent BehaviorBlood PressureBody CompositionBrazilChildCohort StudiesEducational StatusFemaleHumansIncomeMale

Identifiers

PMID23283154
PMCPMC3508419

What OpenQuestion holds

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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.