Mobile App Intervention Reduces Unintentional Injuries in Rural Chinese Preschoolers
Overview
A 12-month cluster randomized controlled trial in rural China demonstrated that a culturally-adapted mobile app intervention significantly reduced unintentional injury incidence among preschoolers. The intervention also improved caregivers' safety attitudes, supervision behaviors, and home safety environments.
Background
Unintentional injuries are a leading cause of death among children under five globally, with higher risks in rural and underserved populations. In China, rural children experience higher injury mortality rates compared to urban peers. Traditional injury prevention education faces challenges in resource-limited rural areas, making mobile health (mHealth) interventions a promising alternative. Prior mHealth studies often focused on knowledge and behaviors rather than actual injury incidence, and few targeted rural populations over extended periods.
Data Highlights
Outcome
Intervention Effect
95% Confidence Interval
Unintentional Injury Incidence (aRR)
0.93
0.86, 0.98
Caregiver Safety-Related Attitudes (b)
0.51
0.32, 0.73
Caregiver Supervision Behaviors (b)
3.83
3.15, 4.46
Home Environment Scores (b)
3.38
2.51, 4.16
Retention Rate
87.0%
Mean App Logins
44.7 (Intervention)
44.6 (Control)
Mean App Usage Time (minutes)
399.1 (Intervention)
381.8 (Control)
Key Findings
The app-based intervention reduced preschooler unintentional injury incidence by 7% (adjusted relative risk 0.93).
Caregivers in the intervention group showed significant improvements in safety-related attitudes.
Supervision behaviors among caregivers improved markedly with the intervention.
Home safety environment scores increased significantly in the intervention group.
The intervention achieved high retention (87%) and similar app engagement between groups.
Falls and blunt force injuries were the most common injury types, mostly occurring at home during play.
Clinical Implications
This study supports the use of culturally-adapted, theory-driven mobile app interventions to effectively reduce unintentional injuries in preschoolers in rural, resource-limited settings. Healthcare providers and public health practitioners should consider integrating mHealth tools to enhance caregiver education and supervision behaviors. Such scalable interventions can address disparities in child injury prevention in underserved populations.
Conclusion
The mobile app intervention demonstrated efficacy in reducing unintentional injuries and improving caregiver safety practices among rural Chinese preschoolers, highlighting its potential for broader dissemination in similar low-resource contexts.
References
Study Authors/Chinese Clinical Trial Registry/2020 -- Mobile Application Intervention for Preventing Unintentional Injuries in Preschoolers in Rural China
