Diet Habit
Conditions
Brief summary
More than a dozen municipalities have passed healthy default kids' beverage policies. These policies seek to reduce child consumption of sugar-sweetened beverages (SSBs) by requiring that restaurants serve only healthy beverages (e.g., water, milk, or 100% juice) instead of SSBs as the default choice with children's meals in restaurants. These policies have potential to meaningfully reduce child SSB consumption. However, there are significant gaps in our knowledge of the effects of healthy default beverage policies on children's health. This study uses a natural experiment to evaluate the effects of a healthy default beverage policy in two U.S. cities, New York City and Philadelphia, on children's fast-food restaurant meal orders and dietary intake. The primary hypothesis is that the policy will reduce children's SSB purchases and consumption, reduce children's total caloric intake, and improve diet quality at the fast-food restaurant meal and on the day of the restaurant meal.
Detailed description
This study uses a quasi-experimental approach to evaluate the effects of a healthy default kids' beverage policy on children's fast-food restaurant meal purchases and dietary intake. Annotated receipt and survey data will be collected from parents purchasing a food or beverage for a child 2-10 years of age at fast-food restaurants. Eligible participants will be asked to participate in a telephone dietary recall the following day. Data will be collected from a repeated cross-section of children in two intervention cities implementing a healthy default kids' beverage policy (New York City and Philadelphia) and a control area not implementing the policy (northern New Jersey) before the policy is implemented and after the policy goes into effect. A difference-in-differences analytic approach will be used to compare the change in children's fast-food restaurant meal orders and dietary intake pre- to post-implementation in the intervention versus control groups. A Holm-Bonferroni correction for multiple comparisons will be applied to p-values for secondary outcomes.
Interventions
OTHERHealthy Default Kids' Beverage Policy
The healthy default kids' beverage policy requires that all restaurants serve only healthy beverages (water, milk, or 100% juice) instead of sugary beverages as the default beverage with children's meals. The policy has been enacted in New York City and Philadelphia and will go into effect in April 2020.
Sponsors
Harvard School of Public Health (HSPH)
University of Pennsylvania
Harvard Pilgrim Health Care
University of Minnesota
RTI International
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Johns Hopkins Bloomberg School of Public Health
Study design
Observational model
OTHER
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* Adult 18 years of age or older * Parent or legal guardian of a child 2-10 years of age * Purchasing at least one food or beverage item for the child at the restaurant (if purchasing foods or beverages for multiple children, only items purchased for the youngest child 2-10 years of age will be included) * Able to speak and understand English or Spanish Additional criteria for dietary recalls: * Parent or legal guardian 18 years of age or older is present for the recall * If child for whom the restaurant meal was purchased is 6 years of age or older, child is present for the recall * If child for whom the restaurant meal was purchased is 9 years of age or older, the child is present for the recall and is able to speak and understand English or Spanish
Exclusion criteria
* Younger than 18 years of age * Is not a parent or legal guardian to a child 2-10 years of age * Is not purchasing one or more food or beverage items for the child at the restaurant * Does not speak or understand English or Spanish Additional criteria for dietary recalls: * Parent or legal guardian is not present for the recall * The restaurant meal was purchased for a child 6 years of age or older, who is not present for the recall * Child 9 years of age or older, for whom the restaurant meal was purchased, is not able to speak or understand English or Spanish
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change from baseline total caloric intake at 24 months | 24 months | Total calories consumed by the child on the day of the restaurant meal |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change from baseline calories consumed from sugar-sweetened beverages during the restaurant meal at 24 months | 24 months | Calories consumed by the child from sugar-sweetened beverages during the restaurant eating occasion |
| Change from baseline fluid ounces of healthy beverages purchased at 24 months | 24 months | Fluid ounces of healthy beverages as defined by NYC/Philadelphia law purchased for the child at the restaurant |
| Change from baseline fluid ounces of other unhealthy beverages purchased at 24 months | 24 months | Fluid ounces of unhealthy beverages as defined by NYC/Philadelphia law, excluding sugar-sweetened beverages, purchased for the child at the restaurant |
| Change from baseline frequency of dining at fast food restaurants at 24 months | 24 months | Number of lunch or dinner meals from fast food restaurants for the child in the past week |
| Change from baseline calories consumed from sugar-sweetened beverages at 24 months | 24 months | Calories consumed by the child from sugar-sweetened beverages on the day of the restaurant meal |
| Change from baseline calories consumed from healthy beverages at 24 months | 24 months | Calories consumed by the child from healthy beverages as defined by NYC/Philadelphia law on the day of the restaurant meal |
| Change from baseline calories consumed from other unhealthy beverages at 24 months | 24 months | Calories consumed by the child from unhealthy beverages as defined by NYC/Philadelphia law, excluding sugar-sweetened beverages, on the day of the restaurant meal |
| Change from baseline Healthy Eating Index 2015 score at 24 months | 24 months | Child's diet quality, measured using the Healthy Eating Index 2015, on the day of the restaurant meal. The Healthy Eating Index 2015 measures how well a diet aligns with the Dietary Guidelines for Americans. It is measured on a scale from 0-100, where higher scores indicate a healthier diet. |
| Change from baseline total caloric intake during the restaurant meal at 24 months | 24 months | Total calories consumed by the child during the restaurant eating occasion |
| Change from baseline calories consumed from healthy beverages during the restaurant meal at 24 months | 24 months | Calories consumed by the child from healthy beverages as defined by NYC/Philadelphia law during the restaurant eating occasion |
| Change from baseline calories consumed from other unhealthy beverages during the restaurant meal at 24 months | 24 months | Calories consumed by the child from unhealthy beverages as defined by NYC/Philadelphia law, excluding sugar-sweetened beverages, during the restaurant eating occasion |
| Change from baseline Healthy Eating Index 2015 score during the restaurant meal at 24 months | 24 months | Child's diet quality, measured using the Healthy Eating Index 2015, during the restaurant eating occasion. The Healthy Eating Index 2015 measures how well a diet aligns with the Dietary Guidelines for Americans. It is measured on a scale from 0-100, where higher scores indicate a healthier diet. |
| Change from baseline fluid ounces of sugar-sweetened beverages purchased at 24 months | 24 months | Fluid ounces of sugar-sweetened beverages purchased for the child at the restaurant |
Other
| Measure | Time frame | Description |
|---|---|---|
| Change from baseline fluid ounces consumed from other unhealthy beverages at 24 months | 24 months | Fluid ounces consumed by the child from unhealthy beverages as defined by NYC/Philadelphia law, excluding sugar-sweetened beverages, on the day of the restaurant meal |
| Change from baseline fluid ounces consumed from healthy beverages at 24 months | 24 months | Fluid ounces consumed by the child from healthy beverages as defined by NYC/Philadelphia law on the day of the restaurant meal |
| Change from baseline fluid ounces consumed from sugar-sweetened beverages at 24 months | 24 months | Fluid ounces consumed by the child from sugar-sweetened beverages on the day of the restaurant meal |
Countries
United States
Outcome results
None listed