Table 5.

Diet Quality Index by groups according to tracking of dairy products consumption at snack meal occasions between T0 and T1, T1 and T3, T0 and T3.

		T0–T1		T1–T3		T0–T3
		Mean DQI (n)	(CI 95%) p-Values	Mean DQI (n)	(CI 95%) p-Values	Mean DQI (n)	(CI 95%) p-Values
All Snacks
Milk	UNHEALTHY TRACKING HEALTHY TRACKING	85.46 (3039) 88.11 (799)	(0.26, 3.20) 0.02	98.85 (908) 101.27 (66)	(−2.35, 6.88) 0.34	98.74 (914) 100.71 (77)	(−3.12, 5.20) 0.62
Yogurt	UNHEALTHY TRACKING HEALTHY TRACKING	85.49 (3388) 89.91 (450)	(1.70, 5.36) <0.001	98.86 (921) 101.73 (53)	(−3.14, 7.05) 0.45	98.79 (928) 100.47 (63)	(−4.06, 5.0) 0.84
Milk + yogurt	UNHEALTHY TRACKING HEALTHY TRACKING	84.90 (2675) 88.56 (1163)	(1.36, 3.96) <0.001	98.65 (860) 101.75 (114)	(−0.95, 6.26) 0.15	98.59 (859) 100.85 (132)	(−2.09, 4.48) 0.48
Cheese	UNHEALTHY TRACKING HEALTHY TRACKING	85.14 (3235) 89.59 (603)	(1.74, 5.0) <0.001	98.63 (913) 104.85 (61)	(0.43, 9.95) 0.03	-	-
Milky desserts + sweetened milk*	HEALTHY TRACKING UNHEALTHY TRACKING	86.34 (450) 85.97 (3388)	(−1.36, 2.31) 0.61	96.81 (120) 99.33 (854)	(−0.07, 6.96) 0.054	98.11 (85) 98.97 (906)	(−2.61, 5.27) 0.51

95% confidence intervals and p-values correspond to linear regression analyses adjusted by BMI z-score (age and sex adjusted), energy intake, higher education of the parents in the final survey (T1 or T3 accordingly), and type of region only for T1 and T3 (control or intervention). Healthy tracking: consumers in both surveys, non-consumers in the first survey but consumers in the final survey (apart from the case for milky desserts and sweetened milk, for which it was the opposite). Unhealthy tracking: non-consumers in both surveys, consumers in the first survey but non-consumers in the final survey (apart from the case for milky desserts and sweetened milk, for which it was the opposite). There are no data for cheese in T0–T3 because the unhealthy tracking group was empty.