Child-care diet/activity RCT and zBMI
A seven-month child-care nutrition and activity intervention significantly reduced children's zBMI versus control centers.
Source
Nutrition and physical activity randomized control trial in child care centers improves knowledge, policies, and children's body mass index
Study at a glance
- Design
- RCT — Cluster RCT of nurse coach-supported nutrition/PA improvements in child care centres vs control
- N
- N=552 · 552 children aged 3–5 and 137 providers across CA, CT, and NC; seven-month trial
- Population
- Preschool children in US child care centres
- Outcome
- Change in child zBMI
Structured fields used in claim comparison tables when every cited study has a complete layer.
What they did
Child care centers in three US states were randomised to nurse coach-supported nutrition/physical-activity improvements versus control; children's zBMI and provider practices were compared.
What they found
Among 552 children and 137 providers, intervention versus control difference in mean zBMI change was significant (coeff -0.14; p=0.02).
The limits
What it doesn't show
Center-level randomisation with socioeconomic imbalances requires cautious causal inference; follow-up was short.
Key terms
- zBMI
- BMI standardised for child age and sex.
- NAP SACC-style intervention
- Nutrition and physical activity self-assessment coaching model.
- Cluster RCT
- Randomisation of centers rather than individuals.
- CCHC
- Child care health consultant/nurse coach.
- Provider practices
- Center policies and behaviours around food/activity.
- Seven-month intervention
- Program duration in this trial.
Flashcards
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Children N:
Common questions
Children N?
552.
zBMI effect?
coeff -0.14, p=0.02.
Duration?
Seven months.
States?
CA, CT, NC.
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