Evidence map›Paper›PMID 32372572›Full record

ArticlePediatric obesity2020

Bedtime, body mass index and obesity risk in preschool-aged children.

Melyssa Roy, Jillian J Haszard, Jennifer S Savage, Kimberly Yolton, Dean W Beebe, Yingying Xu, Barbara Galland, Ian M Paul, Jodi A Mindell, Seema Mihrshahi and 5 more

Registry-linked trialOpen access · greenAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Pediatric obesity, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00892983 (Primary Prevention of Rapid Weight Gain in Early Childhood), which is not on this map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 12% 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.

NCT00892983 nacompletednot on this map

Primary Prevention of Rapid Weight Gain in Early Childhood: a Randomised Controlled Trial

TypeinterventionalSponsorUniversity of OtagoRan2009 to 2017Enrolled802ConditionsObesity, Growth, SleepArmsFAB, Sleep
3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. The role of parenting in associations of weight status with sleep duration and timing for children with mild sleep-disordered breathing.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Observational
  9. 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

15 authors at 6 institutions in 3 countries.

Melyssa RoyDepartment of Medicine, University of Otago, Dunedin, New Zealand.ORCID 0000-0003-1399-3091
Jillian J HaszardBiostatistics Centre, University of Otago, Dunedin, New Zealand.ORCID 0000-0001-6312-7795
Jennifer S SavageCenter for Childhood Obesity Research and Department of Nutritional Sciences, Pennsylvania State University, State College, Pennsylvania, USA.
Kimberly YoltonDepartment of Pediatrics, Cincinnati Children's Hospital Medical Center and University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.
Dean W BeebeDepartment of Pediatrics, Cincinnati Children's Hospital Medical Center and University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.
Yingying XuDepartment of Pediatrics, Cincinnati Children's Hospital Medical Center and University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.
Barbara GallandDepartment of Women's and Children's Health, University of Otago, Dunedin, New Zealand.
Ian M PaulDepartment of Pediatrics, Penn State College of Medicine, Hershey, Pennsylvania, USA.
Jodi A MindellSaint Joseph's University and Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.
Seema MihrshahiCentre of Research Excellence in the Early Prevention of Obesity in Childhood, School of Public Health University of Sydney, New South Wales, Sydney, Australia.
Li Ming WenCentre of Research Excellence in the Early Prevention of Obesity in Childhood, School of Public Health University of Sydney, New South Wales, Sydney, Australia.
Barry TaylorOffice of the Dean, University of Otago, Dunedin, New Zealand.
Rosalina RichardsCentre for Pacific Health, Va'a o Tautai, University of Otago, Dunedin, New Zealand.
Lisa Te MorengaSchool of Health, Victoria University of Wellington, Wellington, New Zealand.
Rachael W TaylorDepartment of Medicine, University of Otago, Dunedin, New Zealand.ORCID 0000-0001-9516-2253
University of Otago · NZCincinnati Children's Hospital Medical Center · USPennsylvania State University · USThe University of Sydney · AUChildren's Hospital of Philadelphia · USVictoria University of Wellington · NZ

Funding

Penn State Clinical and Translational Science InstituteUL1TR000127 · NCATS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI SINOWAY, LAWRENCE I · 2012 to 2015
$17.1M
Preventing Obesity through Intervention during InfancyR01DK088244 · NIDDK · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI PAUL, IAN M, WILLIAMS, JENNIFER SAVAGE · 2011 to 2022
$7.0M
Study of Prevalent Neurotoxicants in ChildrenP01ES011261 · NIEHS · CINCINNATI CHILDRENS HOSP MED CTR · PI LANPHEAR, BRUCE P · 2001 to 2006
$6.4M
A Community-Based Trial to Prevent Lead Poisoning and InjuriesR01ES014575 · NIEHS · CINCINNATI CHILDRENS HOSP MED CTR · PI YOLTON, KIMBERLY · 2007 to 2011
$2.9M
NCATS NIH HHS UL1 TR000127NIDDK NIH HHS R01 DK088244NIEHS NIH HHS P01 ES011261NIEHS NIH HHS R01 ES014575NIH HHS P01 ES011261NIH HHS R01 DK088244NIH HHS R01 ES014575NIH HHS UL1TR000
6 · The paper itself

Abstract

backgroundAlthough sleep duration is a risk factor for obesity in young children, less is known about other aspects of sleep health, including bedtime, on obesity risk.

objectiveTo determine whether bedtime is associated with body mass index (BMI) z-score or obesity risk in children ages 2 to 5 years, and to determine if associations are independent of sleep duration.

methodsCohort analyses were undertaken using three early life obesity prevention trials (POI, INSIGHT, Healthy Beginnings) and a longitudinal cohort study (HOME). Bedtime was assessed by questionnaire and BMI through clinical measurement between 2 and 5 years in 1642 children. Adjusted regression models examined whether BMI z-score and obesity (BMI z-score ≥ 2) were associated with bedtime, nocturnal sleep time and 24-hour sleep time. A discrete mixture model categorized children into bedtime trajectory groups across time points.

resultsBedtime was inconsistently associated with BMI z-score. Although each hour later of bedtime was associated with greater odds of obesity at ages 3 (OR; 95% CI: 1.05; 1.003, 1.10) and 5 (1.35; 1.08, 1.69) years, odds were attenuated after adjustment for nocturnal or 24-hour sleep time. Longer nocturnal sleep duration at 2 years was associated with lower odds of obesity (OR 0.90; 0.86, 0.94), as was longer 24-hour sleep duration at 3 years in girls (0.70; 0.62, 0.78). BMI z-score and odds of obesity were not significantly different between 'early to bed' and 'late to bed' trajectory groups.

conclusionsTiming of bedtime appears inconsistently related to obesity in young children, possibly via influencing overall sleep duration.

Indexed as

Body Mass IndexSleepChild, PreschoolFemaleHumansLongitudinal StudiesMaleOdds RatioPediatric ObesityRisk FactorsSurveys and QuestionnairesTime Factorsbody mass indexchildobesitypreschoolsleep

Identifiers

PMID32372572
PMCPMC7745736
OpenAlexW3021917698

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.