The impact of Chile's multipronged food labelling and advertising law on early childhood excess weight: a cohort difference-in-differences study
Authors' conclusion
Phase 1 of Chile's comprehensive FLAL plausibly caused a measurable decrease in the prevalence of excess weight among young school children. The results provide crucial, evidence-based support for policy makers worldwide who are considering food environment policies as a scalable, impactful strategy to combat the childhood obesity epidemic.
Study context
- Population
- School children aged 4–6 years in public and publicly subsidised schools nationwide in Chile, 2012 to 2017cohorts 2012–15
- Participants
- 321,597 children
- Exposure
- Cohorts exposed to phase 1 of the Food Labelling and Advertising Law (FLAL) vs unexposed cohorts
- Outcome
- Binary indicator of excess weight (overweight or obesity)
Methodological detailsnational administrative data, logit models reported as marginal effects
- National administrative data
- Logit models reported as marginal effects
Main finding
As reported in the abstract
Girls: lower probability of excess weight
2.85%
95% CI −0.0407 to −0.0163
Boys: lower probability of excess weight
2.40%
−0.0358 to −0.0122
Observational data: associations, not effects.
Further findings
Excess weight, marginal effect of exposure to FLAL phase 1 · 6 months of exposure (first grade only)
- Girls: lower probability of excess weight
- 1.91% (−0.0315 to −0.0068)
- Boys: lower probability of excess weight
- 2.24% (−0.0345 to −0.0104)
Original publication
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