Abstract
BACKGROUND: National- and state-level self-reported frequency of fruit and vegetable (F/V) consumption is available for high school students from the Centers for Disease Control and Prevention's Youth Risk Behavior Surveillance System (YRBSS). YRBSS monitors priority health-risk behaviors among a nationally representative sample of US high school students and representative samples of students in states and selected large urban school districts. However, YRBSS measures intake in times per day and not the cup equivalents that national goals use, which limits interpretation. OBJECTIVE: To help states track youth progress, scoring algorithms were developed from external data and applied to 2013 YRBSS data to estimate the percentages of high school students in the nation and 33 states meeting the US Department of Agriculture's Food Patterns F/V intake recommendations. DESIGN: Twenty-four-hour dietary recalls were used from the 2007-2010 National Health and Nutrition Examination Survey to fit sex-specific models for 14- to 18-year-olds that estimate probabilities of meeting recommendations as a function of reported frequency of consumption and race/ethnicity, adjusting for day-to-day dietary variation. Model regression parameters were then applied to national cross-sectional YRBSS data (n=12,829) and to data from the 33 states (n=141,006) that had complete F/V data to estimate percentages meeting recommendations. RESULTS: Based on the prediction equations, 8.5% of high school students nationwide met fruit recommendations (95% CI 4.9% to 12.1%) and 2.1% met vegetable recommendations (95% CI 0.0% to 8.1%). State estimates ranged from 5.3% in Nebraska and Missouri to 8.9% in Florida for fruit and 1.0% in New Jersey, North Dakota, and South Carolina to 3.3% in New Mexico for vegetables. CONCLUSIONS: This method provides a new tool for states to track youth progress toward meeting dietary recommendations and indicates that a high percentage of youth in all states examined have low intakes of F/V.