Table 3.
Parameter (M±SD) | Higher SES | Lower SES | P Value for Difference |
---|---|---|---|
Energy (kcals) | 1413.31±785.67 | 1504.57±750.55 | 0.54 |
% kcals from carbohydrate |
56.07±7.76 | 56.29±8.69 | 0.88 |
% kcals from protein | 13.40±2.97 | 12.24±3.00 | 0.04* |
% kcals from fat | 32.36±5.54 | 33.38±6.15 | 0.35 |
% kcals from saturated fat |
11.33±0.03 | 11.29±0.02 | 0.92 |
% kcals from sweets | 17.04±9.97 | 21.30±10.68 | 0.03* |
Fiber (g) | 11.32±7.93 | 10.96±6.13 | 0.80 |
Calcium (mg) | 663.40±358.67 | 603.83±294.95 | 0.38 |
Iron (mg) | 10.18±5.84 | 9.70±5.34 | 0.67 |
Sodium (mg) | 2013.02±1183.78 | 1988.03±927.70 | 0.91 |
Zinc (mg) | 7.75±4.64 | 7.39±3.84 | 0.68 |
Vitamin A, RAE (mcg) | 418.35±256.26 | 359.13±212.03 | 0.15 |
Vitamin C (mg) | 90.94±86.09 | 80.45±57.26 | 0.49 |
Vitamin E (mg) | 5.17±5.26 | 5.55±5.67 | |
Cups of vegetables | 0.48±0.56 | 0.34±0.34 | 0.18 |
Ounces of grains | 3.65±2.23 | 3.16±1.71 | 0.23 |
Ounces of meats & beans |
3.48±2.73 | 3.56±2.59 | 0.88 |
Cups of milk | 1.22±0.93 | 1.16±0.78 | 0.73 |
Cups of fruit | 0.72±0.57 | 0.67±0.47 | 0.66 |
Servings of fats, oils, sweets |
2.75±1.47 | 3.41±1.73 | 0.03* |
Significant at p < 0.05. M: mean; SD: standard deviation; RAE: retinol activity equivalents.
Socioeconomic status determined by the school-level proportion of students receiving free or reduced-price lunches: Higher: <60% of students. Lower: ≥60% of students.