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Estimating intervention dose of the multilevel multisite children's healthy living program intervention
Jean Butel1, Kathryn L Braun2, Claudio R Nigg2
1Colege of Tropical Agriculture and Human Resources, University of Hawaii at Manoa, Honolulu, HI, USA.
Translational Behavioral Medicine
|May 23, 2019
Summary
Community collective efficacy (CE) interventions can reduce children's screen time. Measuring CE dose and its building blocks, like empowerment and civic engagement, shows promise for improving child health outcomes.
Area of Science:
- Public Health
- Community Psychology
- Behavioral Science
Background:
- Community collective efficacy (CE) is linked to better community health.
- Understanding how to increase CE and measure intervention impact is crucial.
- The Children's Healthy Living (CHL) intervention targeted child obesity-related behaviors.
Purpose of the Study:
- To estimate the CE dose within the CHL intervention.
- To examine the association between CE dose and reduced children's recreational screen time.
- To analyze the impact of CE building blocks on intervention outcomes.
Main Methods:
- Quantified monthly reports from nine intervention communities.
- Calculated CE dose over time and by building blocks (social bonding, bridging, leveraging, empowerment, civic engagement).
- Correlated CE dose with screen time changes using Spearman's rho and compared high-CE vs. low-CE communities using t-tests.
Main Results:
- A significant positive correlation was found between CE dose and reduced screen time (rs = 0.83, p = .003).
- High-CE dose communities conducted more empowerment and civic engagement activities.
- High-CE dose communities were more likely to achieve screen time improvements.
Conclusions:
- Estimating intervention CE dose and its components is a promising method.
- CE and its building blocks, particularly empowerment and civic engagement, are associated with positive intervention outcomes.
- This approach can inform future community-based health interventions.