ArticleBMC pediatrics2025
Longitudinal changes in screen time, sleep, and sports/exercise activity in early adolescence.
Article in BMC pediatrics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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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.
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.
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Who cites it
2 citing papers in PubMed.
- Associations between screen time and dietary intake among early adolescents: a prospective cohort study.Pediatric research · 2026Article
- Adverse childhood experiences and adolescent physical activity: mechanisms and intervention opportunities.World journal of pediatrics : WJP · 2026Article
Corrections and comments
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Authors and funding
12 authors.
Funding
Abstract
backgroundThis study aimed to examine longitudinal changes in screen time, sleep, and sports/exercise activity in early adolescents in the United States.
methodsWe examined data over four annual assessments collected from the Adolescent Brain Cognitive Development (ABCD) Study (N = 9,519) from baseline (2016–2018, ages 9–10) to Year 3 (2019–2021, ages 12–13). Trends in screen time, sleep, sports/exercise activity, and other activities in a 24-hour time-use paradigm were derived from compositional data analysis, incorporating isometric log-ratio transformations and mixed-effects modeling.
resultsScreen time increased by 0.23 h/day from baseline to Year 1, 1.58 h/day from baseline to Year 2, and 3.28 h/day from baseline to Year 3. Video game playing increased more in boys, and digital socializing increased more in girls. Sleep duration slightly decreased from baseline to Year 3. Sports/exercise activity slightly decreased from baseline to Year 1, then increased until Year 3. Time spent on other activities decreased by 0.13 h/day from baseline to Year 1, 1.60 h/day from baseline to Year 2, and 3.38 h/day from baseline to Year 3.
conclusionsOur findings indicate screen time may have increasingly displaced other activities as early adolescents age.
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Registered trials
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.