Study on Intervention Effect of Heat-related Health Risk Early Warning Digital Technology for School-age Children

Sponsor
Centers for Disease Control and Prevention, China
Study ID
NCT07643571
Status
Not Yet Recruiting

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Conditions

  • Cardiovascular Diseases
  • Heat Illness
  • Mental Health Disorders
  • Neurocognitive Impairment
  • Respiratory Diseases

Eligibility Criteria

Sex
ALL
Age
9 Years - 11 Years
Healthy Volunteers
Accepted

Interventions

  • WeChat Mini-program Based Heat Health Risk Early Warning Intervention — OTHER
    This study implements a digital early warning intervention targeting children's high-temperature health risks. During the intervention period, when the high-temperature health risk level reaches yellow, orange or red, relevant risk information, health tips and heat protection education materials are released to parents and head teachers via the WeChat mini-program. Parents or teachers pass on the warning information to participating children. During non-summer periods, Beijing's high-temperature early warning information is pushed to head teachers and parents via the WeChat mini-program; during summer vacation, location-specific early warning information is sent to parents. All recipients are required to pass on the information to children promptly upon receipt.

Study Details

This cluster randomized trial is conducted in Beijing primary schools to evaluate the efficacy of a WeChat mini-program-based high-temperature early warning intervention on the physical and cognitive health of school-age children. Six participating schools are randomly assigned to two parallel groups. The intervention group receives tiered heat alerts and guided self-health monitoring via the mini-program. The control group follows standard daily school and family routines, with no dedicated digital high-temperature early-warning intervention. The primary outcome is children's executive function after a 2.5-month follow-up. A range of secondary indicators related to physical status, mental health and health behaviors are assessed concurrently to quantify the intervention's benefits in mitigating adverse health outcomes caused by high temperatures.

Key Dates

First listed
Jun 11, 2026
Start date
Jun 30, 2026
Status verified
Jun 2026
Primary completion
Sep 30, 2026
Completion
Sep 30, 2026

Study Design

Enrollment
200 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION

Arms

  • No Intervention: Control Group
    The control group does not receive the mini-program-based high-temperature health risk early warning intervention.
  • Experimental: WeChat Mini-program Heat Health Early Warning Intervention Group
    Participants receive tiered yellow, orange and red heat risk alerts and heat protection guidance via the WeChat Mini Program once alerts are issued due to high temperatures. Teachers and parents share health promotion tips with enrolled children. Mandatory mini-program check-ins and routine health monitoring are implemented throughout the 2.5-month intervention.

Primary Outcome Measure

The primary outcome is the comprehensive total score of children's executive function constructed based on the Wisconsin Card Sorting Test (WCST) [ Time Frame: at 2.5 months of intervention. ]

Central Contacts

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