Table 2.
Median food group and caloric consumption by students during lunch period and proportion from school lunch compared to full day, reported in 24HDR (n = 611).
| Food Groups | Students in All Schools n = 611 | Students in Schools with Salad Bars n = 379 | Students in Schools without Salad Bars n = 232 | p 1 |
|---|---|---|---|---|
| Median (IQR) | Median (IQR) | Median (IQR) | ||
| Total fruit (n) | 524 | 308 | 216 | |
| cup | 0.17 (0.64) | 0.06 (0.48) | 0.25 (0.80) | 0.0061 |
| % from lunch | 17.6 (63.7) | 7.0 (62.2) | 30.5 (67.7) | 0.0357 |
| Total vegetable (n) | 589 | 362 | 227 | |
| cup | 0.25 (0.68) | 0.32 (0.73) | 0.23 (0.55) | 0.6690 |
| % from lunch | 25.0 (56.8) | 26.8 (65.1) | 22.1 (49.5) | 0.4686 |
| Total grain (n) | 610 | 378 | 232 | |
| oz | 1.24 (1.50) | 1.38 (1.75) | 0.98 (1.51) | 0.1267 |
| % from lunch | 22.6 (29.5) | 24.4 (32.6) | 18.5 (25.3) | 0.1037 |
| Total dairy (n) | 582 | 361 | 221 | |
| cup | 0.45 (0.99) | 0.50 (0.97) | 0.30 (1.00) | 0.0737 |
| % from lunch | 31.7 (58.1) | 36.1 (59.7) | 26.6 (51.7) | 0.0628 |
| Total protein (n) | 578 | 357 | 221 | |
| oz | 0.95 (1.92) | 0.99 (1.98) | 0.81 (1.49) | 0.8805 |
| % from lunch | 24.2 (53.1) | 22.9 (52.4) | 26.4 (47.7) | 0.9576 |
| Energy consumed (n) | 611 | 379 | 232 | |
| kcal | 432 (340) | 452 (319) | 395 (358) | 0.0136 |
| % from lunch | 23.9 (18.8) | 25.7 (19.5) | 20.8 (17.3) | 0.0510 |
| % Students not eating lunch | 15.9 | 15.7 | 16.2 | 0.8572 |
1 p values are for salad bar schools vs. non-salad bar schools (2 sample t-test).