Table 4.

Tracking of energy and macronutrient intakes^a between age 15y and young adulthood (mean age 22.0y).

	Males			Females
	n	κ	P	n	κ	P
Energy (MJ/d)	245	0.169	<0.0001	231	0.154	0.001
Protein (g/d)	245	0.169	<0.0001	231	0.202	<0.0001
% energy from protein	245	0.019	0.683	231	0.098	0.039
Total fat (g/d)	245	0.117	0.011	231	0.152	0.001
% energy from fat	245	0.143	0.002	231	0.051	0.282
Carbohydrate (g/d)	245	0.114	0.013	231	0.120	0.011
% energy from carbohydrate	245	0.117	0.011	231	0.063	0.182

^a At both timepoints, energy and macronutrient intakes were assessed using the diet history method.

κ indicates extent of tracking, and can be interpreted as follows: κ < 0.20, poor tracking; κ 0.21–0.40, fair; κ 0.41–0.60, moderate; κ 0.61–0.8, good; κ 0.81–1.0, very good (Altman, 1991).