Evidence map›Paper›PMID 42442808›Full record

Trial reportBMJ open2026

Protocol for a digital health-assisted cluster randomised controlled trial to prevent obesity in preschool children in Jinan, China.

Li Zhang, Shiyu Yan, Chunjie Yin, Yuge Zhang, Huijuan Liu, Mai Gao, Zhenyu Zhang, Xuexia Duan, Haijun Wang, Yan Li

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMJ open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07117149 (Peking University Smart Monitoring and Responsive Technology for Early Childhood Health), which is not on this map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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.

NCT07117149 naactive not recruitingnot on this map

Peking University Smart Monitoring and Responsive Technology for Early Childhood Health (PKU-SMART)

TypeinterventionalSponsorPeking UniversityRan2025 to 2027Enrolled980ConditionsChildhood Obesity PreventionArmsmulticomponent, tiered intervention
3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Li Zhang *Clinical Research Center for Children's Health and Diseases, Shandong Provincial Maternal and Child Health Care Hospital affiliated to Qingdao University, Jinan, Shandong, China.
Shiyu Yan *Department of Maternal and Child Health, School of Public Health, Peking University, Beijing, Beijing, China.
Chunjie YinDepartment of Maternal and Child Health, School of Public Health, Peking University, Beijing, Beijing, China.
Yuge ZhangSchool of Public Health, Shandong Second Medical University, Weifang, China.
Huijuan LiuClinical Research Center for Children's Health and Diseases, Shandong Provincial Maternal and Child Health Care Hospital affiliated to Qingdao University, Jinan, Shandong, China.
Mai GaoClinical Research Center for Children's Health and Diseases, Shandong Provincial Maternal and Child Health Care Hospital affiliated to Qingdao University, Jinan, Shandong, China.
Zhenyu ZhangClinical Research Center for Children's Health and Diseases, Shandong Provincial Maternal and Child Health Care Hospital affiliated to Qingdao University, Jinan, Shandong, China.
Xuexia DuanClinical Research Center for Children's Health and Diseases, Shandong Provincial Maternal and Child Health Care Hospital affiliated to Qingdao University, Jinan, Shandong, China.
Haijun WangDepartment of Maternal and Child Health, School of Public Health, Peking University, Beijing, Beijing, China whjun@pku.edu.cn liyanxj@sina.com.ORCID http://orcid.org/0000-0002-8904-6034
Yan LiClinical Research Center for Children's Health and Diseases, Shandong Provincial Maternal and Child Health Care Hospital affiliated to Qingdao University, Jinan, Shandong, China whjun@pku.edu.cn liyanxj@sina.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionEarly childhood obesity has become a major public health concern globally. The preschool period (ages 4-6 years) represents a critical window for obesity prevention due to its long-term implications on growth trajectories and behaviour formation. However, existing evidence for effective interventions targeting this age group remains limited and inconsistent, particularly in low- and middle-income countries. METHODS AND ANALYSIS: The Peking University-Smart Monitoring and Responsive Technology for Early Childhood Health is a cluster-randomised controlled trial designed to evaluate the effectiveness and sustainability of a multi-component, digital health-assisted obesity prevention intervention. The trial involves approximately 980 children aged 4-6 years (middle and senior kindergarten classes) from 14 kindergartens, randomly allocated to either the intervention (n=7) or control (n=7) groups. The intervention spans 9 months, followed by a 12-month post-intervention follow-up. Interventions are delivered across kindergartens, families and healthcare systems. A digital Smart Health Platform is integrated into the intervention to provide health education, real-time feedback and interactive support, enabling personalised health management and promoting parental engagement. Data are collected at baseline, 4, 9 and 21 months. The primary outcome is the between-group difference in changes in body mass index Z-score at 9 months. Secondary outcomes include other anthropometric indicators, dietary intake, physical activity levels and other measurements. In addition, a process evaluation will be conducted to assess fidelity and participant engagement, and a health economic evaluation will estimate cost-effectiveness and cost-benefit outcomes. ETHICS AND DISSEMINATION: Ethical approval for this study was obtained from the Ethics Committee of the Shandong Maternal and Child Health Hospital (no. 2025-042). Findings from the trial will be disseminated through peer-reviewed publications and conference presentations to inform future childhood obesity prevention policies and practices. TRIAL REGISTRATION NUMBER: NCT07117149.

Indexed as

Health EducationHealth PromotionPediatric ObesityBody Mass IndexChildChild, PreschoolChinaCost-Benefit AnalysisDigital HealthExerciseFemaleHumansMaleResearch DesignChildObesityPrimary Prevention

Identifiers

PMID42442808
PMCPMC13365757

What Socratic holds

Textmetadata
LicenceCC BY-NC
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 Socratic graph.