Evidence map›Paper›PMID 37262020›Full record

ArticleBehavioral sleep medicine2024

Impact of School Start Time Delays and Learning Modality on Sleep Timing and Duration During COVID-19.

Cassandra S Bryan, Rachel Weingart, Alyssa Lindsey, Lauren Hale, Dayna A Johnson, Julie A Gazmararian

Open access · greenAbstract read
In one paragraph

Article in Behavioral sleep medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.5field-weighted citation impact, top 33% of its field
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

1 citing paper in PubMed, 2 citations in OpenAlex.

  1. Maternal-Reported Sleep Health for Kindergarteners During the COVID-19 Pandemic.Children's health care : journal of the Association for the Care of Children's Health · 2025
    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 at 2 institutions in 1 country.

Cassandra S BryanDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
Rachel WeingartDepartment of Behavioral, Social, and Health Education Sciences, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
Alyssa LindseyHubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
Lauren HaleDepartment of Family, Population and Preventive Medicine, Stony Brook University, Stony Brook, NY, USA.
Dayna A JohnsonDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
Julie A GazmararianDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
Emory University · USStony Brook University · US

Funding

Effects of Sleep on Academic and Health Outcomes Among AdolescentsR21HD097491 · NICHD · EMORY UNIVERSITY · PI GAZMARARIAN, JULIE A, HALE, LAUREN · 2019 to 2020
$437k
NICHD NIH HHS R21 HD097491
6 · The paper itself

Abstract

objectivesTo assess the impact of a school start time (SST) delay on adolescent sleep health during the COVID-19 pandemic, and whether there were differences by learning modality.

methodsData were collected from a longitudinal study evaluating sleep, education, and health among high school students in Georgia in 2020. Paired t-tests and multivariable linear regression analyses were conducted to examine changes in sleep duration and timing among 9

resultsStudents' school day wake times were 1.5 hours later, school night sleep duration was 1.2 hours longer, and social jetlag was 0.9 hours shorter after the school start time delay (all

conclusionsDelayed school start time was associated with positive changes in adolescent sleep health during the COVID-19 pandemic. Sleep timing was affected by the learning modality, however in-person and virtual students had similar gains in sleep duration. Learning modality may be more beneficial for adolescents with early school start times to promote healthier sleep habits.

Indexed as

COVID-19PandemicsAdolescentHumansLongitudinal StudiesSleepTime Factors

Identifiers

PMID37262020
PMCPMC10689568
OpenAlexW4378977744

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.