Table 2.
Group differences in adjusted* nutrient intakes based on BMI classification†.
| BMI Classification‡ (mean ± SE) | F value | P value | |||
|---|---|---|---|---|---|
| Non-overweight§ | Overweight | Obese | |||
| Nutrients (g) (n = 4080) | |||||
| Carbohydrate | 284.09 ± 0.99a | 275.13 ± 2.25b | 275.35 ± 3.52b, c | 8.88 | <0.001ab; 0.016ac |
| Protein | 79.66 ± 0.46 | 81.95 ± 1.04 | 79.09 ± 1.63 | 2.25 | nsd |
| Fat | 77.36 ± 0.36a | 79.95 ± 0.82b | 81.14 ± 1.29b, c | 7.51 | 0.004ab, ac |
| Fibre | 15.14 ± 0.13a | 13.97 ± 0.29b | 13.79 ± 0.46b, c | 9.86 | <0.001ab; 0.005ac |
| Other food groups subcategories (servings/day) (n = 4080) | |||||
| Mostly sugar | 1.01 ± 0.03 | 0.91 ± 0.06 | 0.99 ± 0.10 | 1.12 | nsd |
| High salt/fat | 0.62 ± 0.02 | 0.58 ± 0.05 | 0.64 ± 0.07 | 0.29 | nsd |
| High calorie beverages | 0.79 ± 0.02 | 0.84 ± 0.05 | 1.09 ± 0.09 | 5.73 | nsd** |
| Low calorie beverages | 1.25 ± 0.04 | 1.30 ± 0.08 | 1.33 ± 0.12 | 0.35 | nsd |
| High sugar/fat | 0.67 ± 0.02 | 0.61 ± 0.04 | 0.54 ± 0.06 | 2.96 | nsd |
BMI: Body Mass Index; g: grams; nsd: no significant difference; SE: standard error of the mean.
*Adjusted for total caloric intake (energy).
†Univariate analyses.
‡Classified according to the International Obesity Task Force cut-offs [22].
§Non-overweight refers to all non-overweight, non-obese students.
**Significance was not observed based on multivariate analysis, however, univariate analysis revealed significance between non-overweight and obese students (P = 0.003).
a, b, cDifferent superscript letters in each row indicate significant statistical differences.