Evidence map›Paper›PMID 33531680›Full record

ArticlePediatric research2021

A longitudinal study of sleep, weight status, and weight-related behaviors: Childhood Obesity Study in China Mega-cities.

Lu Ma, Yixin Ding, Dorothy T Chiu, Yang Wu, Zhiyong Wang, Xin Wang, Youfa Wang

Abstract read
PubMed Publisher
In one paragraph

Article in Pediatric research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 26% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. 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

7 authors at 5 institutions in 2 countries.

Lu Ma *Global Health Institute, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China.
Yixin Ding *Global Health Institute, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China.
Dorothy T ChiuCommunity Health Sciences Division, School of Public Health, University of California, Berkeley, Berkeley, CA, USA.
Yang WuDepartment of Sociology, Center for Asian & Pacific Economic & Social Development, Research Institute for Female Culture, Jiangxi University of Finance and Economics, Nanchang, Jiangxi, China.
Zhiyong WangDepartment of Chronic Non-communicable Diseases, Nanjing Center for Disease Control and Prevention, Nanjing, Jiangsu, China.
Xin WangInstitute of Nutrition and Food Safety Risk Monitoring, Shaanxi Center for Disease Control and Prevention, Xi'an, Shaanxi, China.
Youfa WangGlobal Health Institute, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China. youfawang@gmail.com.
Xi'an Jiaotong University · CNBall State University · USJiangxi University of Finance and Economics · CNUniversity of California, Berkeley · USXian Center for Disease Control and Prevention · CN

Funding

MULTILEVEL SYSTEMS-ORIENTED CHILDHOOD OBESITY STUDY IN CHINAU54HD070725 · NICHD · JOHNS HOPKINS UNIVERSITY · PI LEE, BRUCE Y · 2011 to 2016
$15.9M
NICHD NIH HHS U54 HD070725
6 · The paper itself

Abstract

backgroundThe aim of the study was to examine correlates of sleep and assess its associations with weight status and related behaviors.

methodsData were collected in 2015-2017 for 3298 children aged 6-17 years and their parents in 5 Chinese mega-cities. One thousand six hundred and ninety-one children with measured weight, height, and waist circumference in ≥2 surveys were included for longitudinal data analyses. Sleep and behaviors were self-reported.

resultsCross-sectional data analyses found that older (β = -0.29, 95% CI: -0.32, -0.27) and secondary school children (β = -1.22, 95% CI: -1.31, -1.13) reported shorter sleep than their counterparts. Children with ≥college-educated (vs <college) fathers (β = 0.17, 95% CI: 0.04, 0.31) or mothers (β = 0.16, 95% CI: 0.04, 0.29) reported longer sleep. Longer sleep was longitudinally associated with less sugar-sweetened beverage intake (β = -0.12 days/h sleep, 95% CI: -0.20, -0.03), more healthy snacks intake (β = 0.13 days/h sleep, 95% CI: 0.02, 0.25) and having breakfast (β = 0.07 days/h sleep, 95% CI: 0.04, 0.11), and shorter total screen time (β = -0.22 h/h sleep, 95% CI: -0.65, -0.21) and surfing the internet/computer time (β = -0.06 h/h sleep, 95% CI: -0.09, -0.04) among all children. Longer sleep reduced the risk of central obesity (OR = 0.46, 95% CI: 0.25, 0.85) for girls.

conclusionsSleep among urban Chinese children varies by demographic factors. Longer sleep is associated with healthier weight-related behaviors and lower central obesity risk. IMPACT: Longer sleep was observed in younger, primary school children and children with college-educated parents. Longer sleep increased healthier weight-related behaviors and reduced general and central obesity risk. Provides data on the correlates of sleep duration of children. Gives insights on longitudinal relationships of sleep duration with weight-related behaviors and obesity risk. Findings help inform sleep interventions to increase sleep duration to prevent childhood obesity and unhealthy weight-related behaviors in urban settings of developing countries.

Indexed as

Body WeightHealth BehaviorSleepAdolescentChildChinaCross-Sectional StudiesFemaleHumansLongitudinal StudiesMaleObesity

Identifiers

PMID33531680
OpenAlexW3128917253

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.