Evidence map›Paper›PMID 33606125›Full record

ArticleJournal of youth and adolescence2021

Sleep-Wake Timings in Adolescence: Chronotype Development and Associations with Adjustment.

Maira Karan, Sunhye Bai, David M Almeida, Michael R Irwin, Heather McCreath, Andrew J Fuligni

Abstract read
In one paragraph

Article in Journal of youth and adolescence, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing 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

35 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Impact of 8-hour time-limited eating on sleep in adolescents with obesity.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2023
    Trial
  4. Review
  5. Article
  6. Article
  7. Night Owls and Early Birds: The Role of Adolescents' Chronotype on Educational Identity Trajectories.International journal of psychology : Journal international de psychologie · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Caffeine, Daytime Sleepiness, and Conduct Problems Among Early Adolescents: A Longitudinal Analysis.The Journal of adolescent health : official publication of the Society for Adolescent Medicine · 2025
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

6 authors.

Maira KaranDepartment of Psychology, UCLA, Los Angeles, CA, 90095, USA. mfkaran@ucla.edu.ORCID http://orcid.org/0000-0001-9173-8315
Sunhye BaiHuman Development and Family Studies, Pennsylvania State University, State College, PA, 16801, USA.
David M AlmeidaCenter for Healthy Aging, College of Health and Human Development, Pennsylvania State University, State College, PA, 16801, USA.
Michael R IrwinDepartment of Psychiatry and Biobehavioral Sciences, UCLA, 760 Westwood Plaza, Los Angeles, CA, 90095, USA.
Heather McCreathDivision of Geriatrics, David Geffen School of Medicine, UCLA, 10945 Le Conte Avenue, Los Angeles, CA, 90095, USA.
Andrew J FuligniDepartment of Psychology, UCLA, Los Angeles, CA, 90095, USA.

Funding

USC/UCLA Center on Biodemography &Population HealthP30AG017265 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI JENNIFER A AILSHIRE, HIRAM BELTRAN-SANCHEZ · 1999 to 2026
$17.9M
Statistics and Methods CoreR24HD041022 · NICHD · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI COSTA, DORA L · 2001 to 2016
$10.1M
UCLA OLDER AMERICANS INDEPENDENCE CENTERP30AG028748 · NIA · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI MOORE, ALISON AHERN · 2006 to 2017
$9.8M
Daily Experience in Adolescence and Biomarkers of Early Risk for Adult HealthR01HD062547 · NICHD · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI FULIGNI, ANDREW J · 2010 to 2015
$2.6M
Doctoral Training in Brain and Behavioral Development During Adolescence (UCLA BBDA)T32HD091059 · NICHD · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI Mirella Dapretto, ANDREW J FULIGNI · 2018 to 2026
$1.7M
Eunice Kennedy Shriver National Institute of Child Health and Human Development 5T32HD091059NIA NIH HHS P30 AG017265NIA NIH HHS P30 AG028748NICHD NIH HHS R01 HD062547NICHD NIH HHS R24 HD041022NICHD NIH HHS T32 HD091059
6 · The paper itself

Abstract

Adolescent sleep research has focused heavily on duration and quality with less work examining chronotype, defined as individual differences in sleep-wake timings driven by the circadian rhythm. This study filled a gap in the literature by utilizing actigraphy-based sleep estimates in an accelerated longitudinal design in order to better understand the developmental trajectory and individual stability of chronotype during adolescence, as well as the associations between chronotype with risky behaviors, substance use, and depressive symptoms. A total of 329 adolescents (57% female; 21% Asian American, 31% European American, 41% Latino, 7% other ethnicity) provided actigraphy-based estimates of sleep and completed questionnaires at up to three time points, two years apart, beginning at 14-17 years of age. Multilevel modeling revealed a non-linear developmental trend in chronotype whereby eveningness increased from 14 to 19 years of age followed by a trend toward morningness. Individual differences in chronotype exhibited modest stability during adolescent development. Furthermore, greater evening chronotype was associated with more risky behaviors and substance use among males, and more substance use among older adolescents, whereas depressive symptoms were not associated with chronotype. The findings from this study may have practical implications for adolescent behavioral health interventions targeted at reducing risky behaviors and substance use among youth.

Indexed as

SleepSleep Wake DisordersAdolescentAdolescent DevelopmentCircadian RhythmFemaleHumansMaleSurveys and QuestionnairesAdolescenceChronotypeRisky behaviorsSleepSubstance use

Identifiers

PMID33606125
PMCPMC7993411

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.