TABLE 2—
Yearly Daily Lunch Servings per Student for School Years 2001–2002 (Year 1), 2002–2003 (Year 2), and 2005–2006 (Year 3) in 3 Schools in Texas
| Significant Pairwise Comparison for Food Source | |||||||
| Servings | Mean (SD) | From NSLP, % | From Snack Bar, % | From Vending Machines, % | Brought From Home, % | Year 1 vs 3 | Year 2 vs 3 |
| Fruit or juice | |||||||
| Year 1 | 0.32 (0.25) | 87 | 6 | 0 | 6 | ||
| Year 2 | 0.36 (0.30) | 85 | 6 | 1 | 8 | ||
| Year 3 | 0.45 (0.06) | 94 | 2 | 0 | 5 | ||
| Vegetablesa,b | NSLP, snack bar | Home | |||||
| Year 1 | 0.29 (0.12)x | 83 | 16 | 0 | 1 | ||
| Year 2 | 0.20 (0.08)x | 94 | 4 | 0 | 2 | ||
| Year 3 | 0.89 (0.22)y | 99 | 1 | 0 | 1 | ||
| High-fat vegetablesb | Snack bar | ||||||
| Year 1 | 0.05 (0.10) | 76 | 24 | 0 | 0 | ||
| Year 2 | 0.15 (0.19) | 89 | 9 | 0 | 2 | ||
| Year 3 | 0.10 (0.09) | 84 | 1 | 0 | 6 | ||
| Milk,a,b oz | NSLP, snack bar | ||||||
| Year 1 | 2.44 (1.41)x | 88 | 9 | 0 | 3 | ||
| Year 2 | 4.40 (1.92)x | 92 | 6 | 0 | 2 | ||
| Year 3 | 6.54 (0.26)y | 99 | 1 | 0 | 0 | ||
| Sweet beverages,a,b oz | Snack bar, vending machines | Snack bar, vending machines, home | |||||
| Year 1 | 5.43 (3.13)y | 9 | 13 | 72 | 6 | ||
| Year 2 | 3.54 (1.68) | 4 | 6 | 78 | 12 | ||
| Year 3 | 1.49 (0.20)x | 2 | 61 | 19 | 18 | ||
| Soft drinks,a,b oz | NSLP, vending machines, home | NSLP, vending machines, home | |||||
| Year 1 | 4.76 (3.05)y | 5 | 8 | 80 | 4 | ||
| Year 2 | 2.65 (1.26)y | 3 | 2 | 86 | 9 | ||
| Year 3 | 0.11 (0.11)x | 0 | 9 | 11 | 66 | ||
| Candyb | Snack bar, vending machines | Snack bar, vending machines, home | |||||
| Year 1 | 0.09 (0.06) | 20 | 24 | 39 | 16 | ||
| Year 2 | 0.06 (0.05) | 13 | 3 | 56 | 27 | ||
| Year 3 | 0.04 (0.01) | 3 | 52 | 5 | 40 | ||
| Dessert foodsb,c | NSLP, snack bar, vending machines, home | Snack bar, vending machines | |||||
| Year 1 | 0.11 (0.10)y | 24 | 7 | 22 | 47 | ||
| Year 2 | 0.09 (0.09) | 40 | 9 | 13 | 38 | ||
| Year 3 | 0.04 (0.02)x | 15 | 20 | 0 | 64 | ||
| Snack chipsa,b | NSLP, snack bar, vending machines, home | Snack bar, vending machines, home | |||||
| Year 1 | 0.21 (0.13)y | 10 | 41 | 31 | 18 | ||
| Year 2 | 0.20(0.11)y | 12 | 20 | 47 | 21 | ||
| Year 3 | 0.04 (0.02)x | 4 | 1 | 6 | 90 | ||
Note. NSLP = National School Lunch Program. Percentage of nutrient consumed from each meal was aggregated weekly (n1 = 24, n2 = 28, n3 = 21). Significant (P < .025) pairwise comparison notation among mean servings: mean (y) > mean (x).
a Significant global effect for year for consumption.
bSignificant global effect for percentage for at least 1 meal source.
cSignificant (P > .005) after adjustment for total kilojoules.