The tracking of dietary intakes of children and adolescents in Sweden over six years: the European Youth Heart Study

Table 4 Tracking values

	Younger group (EYHS I to EYHS II)			Older group (EYHS I to EYHS II)
	Stability^a	Cohen's κ^b	Predictive value^c	Stability^a	Cohen's κ^b	Predictive value^c
Food groups
Bread	0.36	0.06	0.76	0.36	0.06	0.50
Milk, fil, yoghurt	0.49	0.30	1.17	0.35	0.06	0.58
Cheese	0.49	0.16	0.86	0.29	< 0	0.45
Vegetables	0.38	0.11	0.55	0.40	0.17	0.79
Fruit	0.40	0.10	0.76	0.49	0.23	0.82
Fruit juice	0.14	< 0	0.45	0.16	n/a	0.67
Pasta, rice, potatoes	0.37	0.06	0.55	0.44	0.14	0.64
Cereals	0.50	0.15	0.77	0.49	0.11	0.69
Pizza, pies, pancakes	0.66	n/a^d	0.22	0.77	n/a	0.35
Meat, meat dishes	0.34	< 0	0.47	0.36	0.06	0.65
Poultry, poultry dishes	0.76	n/a	0.33	0.78	n/a	0.15
Spreads, oils	0.34	< 0	0.56	0.29	< 0	0.38
Sweets, chocolate	0.33	0.00	0.43	0.41	0.12	0.79
Cakes, biscuits	0.23	n/a	0.48	0.51	0.05	0.61
Other sweet foods	0.37	0.04	0.49	0.39	0.06	0.62
Sweetened drinks	0.44	0.07	0.63	0.48	0.17	0.72
Chips, crisps	0.67	n/a	0.22	0.34	n/a	0.69
Nutrients
Energy	0.36	0.07	0.60	0.33	0.06	0.58
Protein^e	0.36	0.05	0.57	0.42	0.16	0.67
Fat^e	0.37	0.06	0.54	0.35	0.04	0.54
Saturated fat^e	0.38	0.09	0.69	0.36	0.07	0.62
Carbohydrates^e	0.36	0.06	0.54	0.35	0.03	0.58
Sucrose^e	0.39	0.11	0.57	0.38	0.07	0.71
Fibre	0.36	0.09	0.65	0.48	0.26	0.94
Vitamin C	0.38	0.04	0.42	0.42	0.19	0.76
Folic acid	0.35	0.02	0.60	0.37	0.09	0.71
Iron	0.35	0.04	0.48	0.34	0.04	0.58
Calcium	0.43	0.18	0.75	0.39	0.06	0.62
Energy density	0.35	0.06	0.65	0.40	0.16	0.58

ISSN: 1479-5868