Evidence map›Paper›PMID 31969131›Full record

ArticleBMC public health2020

Relationship between sleep and obesity among U.S. and South Korean college students.

Jaesin Sa, Siyoung Choe, Beom-Young Cho, Jean-Philippe Chaput, Gyurin Kim, Chae-Hee Park, Joon Chung, Yoojin Choi, Beatrice Nelson, Yongkyu Kim

Open access · goldAbstract read
In one paragraph

Article in BMC public health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
7.5field-weighted citation impact, top 2% 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

37 citing papers in PubMed, 75 citations in OpenAlex.

  1. Trial
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  3. Examining the Role of Sleep in Body Weight Regulation and Implications for Obesity Treatment: A Narrative Review.Obesity reviews : an official journal of the International Association for the Study of Obesity · 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

10 authors at 10 institutions in 3 countries.

Jaesin SaCollege of Education and Health Sciences, Touro University, Vallejo, CA, USA.
Siyoung ChoeDepartment of Kinesiology and Health, Miami University, Oxford, OH, USA.
Beom-Young ChoDepartment of Epidemiology, University of Michigan, Ann Arbor, MI, USA.
Jean-Philippe ChaputDepartment of Pediatrics, University of Ottawa, Ottawa, ON, Canada.
Gyurin KimDepartment of Physical Education, Seoul National University, Seoul, South Korea.
Chae-Hee ParkDepartment of Sport and Healthy Aging, Korea National Sport University, Seoul, South Korea.
Joon ChungDivision of Sleep and Circadian Disorders, Harvard Medical School, Boston, MA, USA.
Yoojin ChoiDepartment of Secondary and Physical Education Salisbury University, Salisbury, MD, USA.
Beatrice NelsonDepartment of Kinesiology, University of Maryland Eastern Shore, Princess Anne, MD, USA.
Yongkyu KimDepartment of Physical Education, Daegu University, Daegu, South Korea. kim9886@daegu.ac.kr.
Daegu University · KRHarvard University · USKorea National Sport University · KRMiami University · USSalisbury University · USSeoul National University of Education · KRTouro University California · USUniversity of Maryland Eastern Shore · USUniversity of Michigan–Ann Arbor · USUniversity of Ottawa · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLittle is known about the relationship between sleep and obesity in young adults, particularly college students. This study examined the relationship between sleep (i.e., sleep duration and quality) and obesity in a large and diverse binational sample of college students.

methodsAnalyses were based on a 40-item paper survey from 2016/2017 to 2017/2018 academic years, with a 72% response rate. The samples were 1578 college students aged 18-25 years from five universities (two in the U.S. and three in South Korea). Weight and height were measured objectively; other measures (e.g., health behaviors) were self-reported. Multinomial logistic regression was used to assess the association between sleep duration and independent variables (race/nationality, gender, and BMI). Poisson regression was used to examine the relationship between sleep quality and independent variables.

resultsOverall, blacks had a higher adjusted odds ratio (AOR) of short sleep (< 7 h/night) than whites (AOR = 1.74, P < .01); overweight participants had a higher AOR of short sleep than normal weight participants (AOR = 1.52, P < .01); and obese participants had a higher AORs of both short and long sleep (> 9 h/night) (AOR = 1.67, P < .01; AOR = 1.79, P < .05, respectively). Among men, being black, overweight, and obesity were associated with short sleep (P < .05), whereas only obesity was related to short sleep among women (P < .05). In analyses stratified by race and nationality, overweight and obesity were related to short sleep among blacks only (P < .05). Overall, sleep quality (getting enough sleep to feel rested in the morning in the past 7 days) was worse in blacks and South Koreans than whites (P < .05), worse in women than men (P < .05), and worse in participants with obesity than normal weight participants (P < .05).

conclusionsObesity was associated with both short (< 7 h/night) and long sleep duration (> 9 h/night) and poor sleep quality among all participants. In comparison with whites, blacks were more like to have short sleep, and blacks and South Koreans had worse sleep quality. Further investigations using a larger sample of college students in multiple countries may be helpful to identify target populations who are at a greater risk of obesity and sleep problems.

Indexed as

AdolescentAdultAsian PeopleBlack or African AmericanBody WeightFemaleHealth BehaviorHealth SurveysHumansLogistic ModelsMaleObesityOdds RatioOverweightRepublic of KoreaRisk FactorsGenderObesityRaceSleepSouth Korea

Identifiers

PMID31969131
PMCPMC6977299
OpenAlexW3002638235

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.