Evidence map›Paper›PMID 26446623›Full record

ArticleBMC public health2015

Association between sleep duration and obesity is age- and gender-dependent in Chinese urban children aged 6-18 years: a cross-sectional study.

Muqing Cao, Yanna Zhu, Baoting He, Wenhan Yang, Yajun Chen, Jun Ma, Jin Jing

Open access · goldAbstract read
In one paragraph

Article in BMC public health, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 3 pooled it
4.5field-weighted citation impact, top 6% 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

25 citing papers in PubMed, 3 syntheses or guidelines pooled it, 51 citations in OpenAlex.

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  15. Association Between Outdoor Activity and Insufficient Sleep in Chinese School-Aged Children.Medical science monitor : international medical journal of experimental and clinical research · 2020
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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

7 authors at 2 institutions in 1 country.

Muqing CaoDepartment of Maternal and Child Health, Faculty of Public Health, Sun Yat-sen University, No. 74, Zhongshan 2nd Road, Yuexiu, 510080, Guangzhou, People's Republic of China. caomuqing0922@126.com.
Yanna ZhuDepartment of Maternal and Child Health, Faculty of Public Health, Sun Yat-sen University, No. 74, Zhongshan 2nd Road, Yuexiu, 510080, Guangzhou, People's Republic of China. zhuyn3@mail.sysu.edu.cn.
Baoting HeDepartment of Maternal and Child Health, Faculty of Public Health, Sun Yat-sen University, No. 74, Zhongshan 2nd Road, Yuexiu, 510080, Guangzhou, People's Republic of China. 123606578@qq.com.
Wenhan YangDepartment of Maternal and Child Health, Faculty of Public Health, Sun Yat-sen University, No. 74, Zhongshan 2nd Road, Yuexiu, 510080, Guangzhou, People's Republic of China. yangwhan@mail.sysu.edu.cn.
Yajun ChenDepartment of Maternal and Child Health, Faculty of Public Health, Sun Yat-sen University, No. 74, Zhongshan 2nd Road, Yuexiu, 510080, Guangzhou, People's Republic of China. chenyj68@mail.sysu.edu.cn.
Jun MaInstitute of Child and Adolescent Health, School of Public Health, Peking University Health Sciences Center, Beijing, People's Republic of China. majunt@bjmu.edu.cn.
Jin JingDepartment of Maternal and Child Health, Faculty of Public Health, Sun Yat-sen University, No. 74, Zhongshan 2nd Road, Yuexiu, 510080, Guangzhou, People's Republic of China. jingjin@mail.sysu.edu.cn.
Sun Yat-sen University · CNPeking University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundInformation on the relationship between sleep duration and obesity among children in urban Guangzhou, China is limited. This study aims to examine the relationship between sleep duration and obesity in children aged 6-18 years.

methodsThe sample consisted of 11,830 children aged 6-18 years. The children were randomly selected from 13 schools in three urban districts of Guangzhou. The study was conducted from September to November 2013. The height and weight of the children were measured. Adiposity status was estimated using body mass index and according to the cut point in China criteria. In the structured questionnaire, children reported daily sleep hours (less than 7 h, 7-9 h and more than 9 h), weekly food intake amount (including vegetables, fruit, sugar beverages and meat), physical activity and sedentary time. A caretaker would answer the questionnaire on behalf of a child aged below nine.

resultsA total of 8,760 children (49.0 % boys) completed the study. The prevalence of obesity was 8.4 % (9.8 % in boys and 5.7 % in girls). Adjusted for age, diet and physical activity/sedentary behaviour, the odds ratio (OR) for obesity comparing sleeping <7 h (short sleep duration, SSD) with ≥9 h (long sleep duration, LSD) was 0.70 (95 % CI: 0.69-0.72) among boys and 1.73 (95 % CI: 1.71-1.74) among girls. Stratified by age, OR for boys aged 6-12 years comparing SSD with LSD was 0.60 (95 % CI: 0.55-0.66); by contrast, OR was 1.33 (95 % CI: 1.30-1.37) for boys aged 13-18 years.

conclusionShort sleep duration is associated with increased chances of obesity among girls and 13- to 18-year-old boys, but the chances of obesity are decreased among 6- to 12-year-old boys. Age and gender should be regarded as specific characteristics for the effects of short sleep on obesity.

Indexed as

SleepAdiposityAdolescentAge FactorsBody Mass IndexBody WeightChildChinaCross-Sectional StudiesDietExerciseFemaleHumansMaleOdds RatioPediatric Obesity

Identifiers

PMID26446623
PMCPMC4596376
OpenAlexW1920212827

What OpenQuestion holds

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LicenceCC BY
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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.