Sleep Duration and Body Mass Index Among Adolescents: Variation by Age and Race/Ethnicity.

Astrid N Zamora, Zachary P Gersten, Erica C Jansen

Abstract read

In one paragraph

Article in Clocks & sleep, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it

0cells of the map it votes in

0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

3 authors.

Astrid N ZamoraDepartment of Epidemiology and Population Health, School of Medicine, Stanford University, Stanford, CA 94304, USA.ORCID 0000-0001-8187-3492

Zachary P GerstenDepartment of Nutrition, University of California at Davis, Davis, CA 95616, USA.ORCID 0000-0001-8328-0199

Erica C JansenDepartment of Nutritional Sciences, School of Public Health, University of Michigan, Ann Arbor, MI 48109, USA.

Funding

Creating Opportunities for Unparalleled Researchers to Achieve Growth and Excellence (COURAGE)U24DK132733 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI MORONE, NATALIA E., STANFORD, FATIMA CODY · 2022 to 2025

$3.3M

NIDDK NIH HHS U24 DK132733Stanford University School of Medicine Propel Postdoctoral Scholars Program (NIDDK) U24DK132733

6 · The paper itself

Abstract

Sleep characteristics have been associated with body mass index (BMI) among adolescents, but population-representative evidence on sleep timing and variation across demographic subgroups remains limited. We conducted a cross-sectional analysis of 2017-2018 California Health Interview Survey data from 880 adolescents aged 12-17 years. Weeknight sleep duration was obtained from the CHIS-derived sleep-duration variable, based on reported school-night bedtimes and school-day wake times. Sleep-timing measures included bedtime, wake time, and the derived sleep midpoint. Pooled survey-weighted linear and logistic regression models used 160 jackknife replicate weights and adjusted for age, sex, race/ethnicity, household poverty category, and survey year; sensitivity models additionally adjusted for dietary and behavioral factors. Sleep duration was not associated with BMI overall (

Indexed as

adolescent healthbody mass indexobesityrace/ethnicitysleep health

Identifiers

PMID42647193

DOI10.3390/clockssleep8030045

PMCPMC13511623

What OpenQuestion holds

Textmetadata

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.