The effect of soft drink availability in elementary schools on consumption
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The Effect of Soft Drink Availability in Elementary Schools on Consumption. Meenakshi M Fernandes, MPhil: Pardee RAND Graduate School. JOURNAL OF THE AMERICAN DIETETIC ASSOCIATION. Fernandes, M. J Am Diet Assoc. 108 (9), Sep. 2008.

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The Effect of Soft Drink Availability in Elementary Schools on Consumption

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The effect of soft drink availability in elementary schools on consumption

The Effect of Soft Drink Availability in Elementary Schools on Consumption

Meenakshi M Fernandes, MPhil: Pardee RAND Graduate School

JOURNAL OF THEAMERICAN DIETETICASSOCIATION

Fernandes, M. J Am Diet Assoc. 108 (9), Sep. 2008


The effect of soft drink availability in elementary schools on consumption

The Effect of Soft Drink Availability in Elementary Schools on Consumption

Background

  • Schools play an important role in addressing childhood obesity

  • No federal standards exist for competitive foods1

  • Several local studies have reported associations between the availability of competitive foods and eating behaviors at school

  • None have conducted a national scale evaluation

1 foods and beverages sold through a la carte lines, vending machines, school stores and school fund raisers which are typically high in calories and low in nutritional value

JOURNAL OF THEAMERICAN DIETETICASSOCIATION

Fernandes, M. J Am Diet Assoc. 108 (9), Sep. 2008


The effect of soft drink availability in elementary schools on consumption

The Effect of Soft Drink Availability in Elementary Schools on Consumption

Objectives

  • For 5th graders in the 2003-2004 school year:

  • Provide national-level data on predictors of soft drink consumption.

  • Identify sociodemographic differences in how availability of soft drinks at elementary schools relates to consumption of soft drinks at school and overall.

JOURNAL OF THEAMERICAN DIETETICASSOCIATION

Fernandes, M. J Am Diet Assoc. 108 (9), Sep. 2008


The effect of soft drink availability in elementary schools on consumption

The Effect of Soft Drink Availability in Elementary Schools on Consumption

Data and Measures

  • Analysis based on the Early Childhood Longitudinal Survey – Kindergarten Cohort (ECLS-K).

  • Baseline sample is nationally-representative of kindergarteners in the 1998-1999 school year.

  • Measures of soft drink availability, purchases and consumption are reported by 5th graders in direct assessments

JOURNAL OF THEAMERICAN DIETETICASSOCIATION

Fernandes, M. J Am Diet Assoc. 108 (9), Sep. 2008


The effect of soft drink availability in elementary schools on consumption

The Effect of Soft Drink Availability in Elementary Schools on Consumption

Data Analysis

  • Chi-square tests and t-tests used to determine statistically significant differences across sociodemographic groups.

  • Multivariate logistic regressions estimate the effect of availability on the odds of any soft drink consumption and overall consumption level.

JOURNAL OF THEAMERICAN DIETETICASSOCIATION

Fernandes, M. J Am Diet Assoc. 108 (9), Sep. 2008


The effect of soft drink availability in elementary schools on consumption

The Effect of Soft Drink Availability in Elementary Schools on Consumption

Results

  • For 5th grade children in the 2003-2004 school year:

  • 26% of children who have soft drinks at school consume them.

  • Low-income and Black non-Hispanic children consume more soft drinks both at school and overall.

  • Limiting availability of soft drinks at school is associated with a 4% decrease (odds ratio [OR] 1.38) in the odds of any consumption overall.

JOURNAL OF THEAMERICAN DIETETICASSOCIATION

Fernandes, M. J Am Diet Assoc. 108 (9), Sep. 2008


The effect of soft drink availability in elementary schools on consumption

The Effect of Soft Drink Availability in Elementary Schools on Consumption

Blacks have a higher likelihood of consuming soft drinks at school conditional on availability, %

Results from the Early Childhood Longitudinal Survey

JOURNAL OF THEAMERICAN DIETETICASSOCIATION

Fernandes, M. J Am Diet Assoc. 108 (9), Sep. 2008


The effect of soft drink availability in elementary schools on consumption

The Effect of Soft Drink Availability in Elementary Schools on Consumption

Children from low-income households consume significantly more soft drinks overall, %

Results from the Early Childhood Longitudinal Survey

JOURNAL OF THEAMERICAN DIETETICASSOCIATION

Fernandes, M. J Am Diet Assoc. 108 (9), Sep. 2008


The effect of soft drink availability in elementary schools on consumption

The Effect of Soft Drink Availability in Elementary Schools on Consumption

Soft drink availability increases the likelihood of any soft drink consumption, but not consumption level

Results from the Early Childhood Longitudinal Survey

JOURNAL OF THEAMERICAN DIETETICASSOCIATION

Fernandes, M. J Am Diet Assoc. 108 (9), Sep. 2008


The effect of soft drink availability in elementary schools on consumption

The Effect of Soft Drink Availability in Elementary Schools on Consumption

Conclusions

  • Soft drink availability at school may have limited impact on overall consumption

  • Other food items offered to elementary school children may have a similar limited contribution

  • The effect of availability on consumption may be stronger for older children

JOURNAL OF THEAMERICAN DIETETICASSOCIATION

Fernandes, M. J Am Diet Assoc. 108 (9), Sep. 2008


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