Table 2.

Energy and macronutrient intakes by group (TD and ID)^†

Nutrient	TD (n = 55) Adjusted mean (SE)	ID (n = 48) Adjusted mean (SE)	Adjusted mean difference (95% CI)‡	P-value
%kcal from fat	30.6 (0.9)	30.3 (0.9)	−0.3 (−2.8, 2.2)	0.83
%kcal from carbohydrate	54.3 (0.9)	55.1 (1.0)	0.8 (−2.0, 3.5)	0.58
%kcal from protein	15.1 (0.5)	14.6 (0.5)	−0.5 (−2.0, 1.1)	0.54
	Adjusted geometric mean (SE)	Adjusted geometric mean (SE)	Adjusted relative mean difference (%) (95% CI)‡
Energy (kcal)	1625.5 (1.0)	1522.8 (1.0)	−6.3 (−15.3, 3.6)	0.20
Protein (g)	60.2 (1.0)	53.1 (1.0)	−11.8 (−22.0, −0.4)	0.04
Fibre (g)	14.5 (1.1)	13.1 (1.1)	−9.8 (−23.8, 6.8)	0.23
Added sugars (g)	46.3 (1.1)	36.0 (1.1)	−22.3 (−39.9, 0.4)	0.05

^†All analyses adjusted for BMI z-score, parent education (college and no college) and race (White and non-White).

^‡Mean difference is presented as difference (ID – TD) for arithmetic means and per cent change from TD for geometric means.

BMI, body mass index; CI, confidence interval; ID, intellectual disability; SE, standard error; TD, typically developing.