Adolescent Weight Status and Related Behavioural Factors: Web Survey of Physical Activity and Nutrition

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 ± 0.99^a	275.13 ± 2.25^b	275.35 ± 3.52^b, c	8.88	<0.001^ab; 0.016^ac
Protein	79.66 ± 0.46	81.95 ± 1.04	79.09 ± 1.63	2.25	nsd
Fat	77.36 ± 0.36^a	79.95 ± 0.82^b	81.14 ± 1.29^b, c	7.51	0.004^ab, ac
Fibre	15.14 ± 0.13^a	13.97 ± 0.29^b	13.79 ± 0.46^b, c	9.86	<0.001^ab; 0.005^ac
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, c}Different superscript letters in each row indicate significant statistical differences.