Evidence map›Paper›PMID 33301823›Full record

ArticlePreventive medicine2021

Disentangling individual, school, and neighborhood effects on screen time among adolescents and young adults in the United States.

Hoda S Abdel Magid, Carly E Milliren, Kelley Pettee Gabriel, Jason M Nagata

Abstract read
In one paragraph

Article in Preventive medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Sleep Duration and Sun Exposure in Portuguese Children: Associations With Obesity Indicators.American journal of human biology : the official journal of the Human Biology Council · 2026
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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

4 authors.

Hoda S Abdel MagidDepartment of Epidemiology and Population Health, Stanford University, Stanford, CA, USA. Electronic address: hmagid@stanford.edu.
Carly E MillirenInstitutional Centers for Clinical and Translational Research, Boston Children's Hospital, Boston, MA, USA.
Kelley Pettee GabrielDepartment of Epidemiology, The University of Alabama at Birmingham, Birmingham, AL, USA.
Jason M NagataDivision of Adolescent and Young Adult Medicine, Department of Pediatrics, University of California, San Francisco, CA, USA.

Funding

Wave IV Data CollectionP01HD031921 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI HARRIS, KATHLEEN MULLAN · 1994 to 2020
$86.1M
NICHD NIH HHS P01 HD031921
6 · The paper itself

Abstract

objectivesTo examine the association between individual, neighborhood, and school-level influences on individual screen time among adolescents and young adults (AYAs) in the National Longitudinal Study of Adolescent to Adult Health.

methodsWe classified screen time continuously as self-reported total hours per week of television, videos, and video/computer games at baseline and categorical as extended screen time (≥14 h per week). We fit cross-classified multilevel models (CCMM) to examine to examine the individual-, school- and neighborhood-level demographic and socioeconomic factors associated with screen time. Models were fit using MLwiN with Bayesian estimation procedures.

resultsAYAs reported an average of 22.8 (SD = 19.4) and 21.9 (SD = 20.3) hours of screen time, respectively. At the individual level, younger age, male sex, Black/multiracial race, receipt of public assistance, and lower parental education were associated with higher screen time. At the school level, being out of session (i.e., school and national holidays including summer), having a higher proportion of non-White students, and having a lower proportion of parents with a college education were associated with higher individual screen time.

conclusionsWe found that individual-level factors most influence youth screen time, with smaller contributions from school factors.

Indexed as

Adolescent BehaviorVideo GamesAdolescentBayes TheoremCross-Sectional StudiesHumansLongitudinal StudiesMaleSchoolsScreen TimeTelevisionUnited StatesYoung AdultAdolescentsCross-classified multilevel modelingNeighborhoodsSchool environmentsScreen timeSedentary behavior

Identifiers

PMID33301823
PMCPMC7934642

What OpenQuestion holds

Textmetadata
LicenceTDM
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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.