Table 6. Total diet: The effect of lunch type (school or home-packed lunch) on children’s mean daily nutrient intake and Dietary Reference Values/Reference Nutrient Intakes (DRV/RNI) [39].

Nutrient	DRV/RNI	Packed (PL)*School (SL)		[SL-PL]
		Mean†		Mean difference	95% CI for difference	p-value‡
Energy (kcals)	M§ = 2220; F§ = 1845	1792	1788	−4	−78; 71	0.9
% energy saturated fat	≤11	13.2	12.7	−0.5	−0.9; −0.1	0.02
% energy NMES	≤11	16.9	16.0	−0.9	−1.8; 0.0	0.06
NSP (g)	–	10.1	10.2	0.1	−0.5; 0.7	0.8
Sodium (mg)	1600	2490	2347	−143	−261; −26	0.02
Vitamin C (mg) ∥	35	70.8	72.4	1.0	0.9; 1.1	0.5
Calcium (mg)	M = 1000; F = 800	778	697	−81	−127; −35	0.001
Iron (mg)	M = 11.3; F = 14.8	9.2	8.8	−0.4	−0.9; 0.2	0.2

*Number of children participating in 1999–2000 (n = 298) and 2009–10 (n = 215).

^†Mean adjusted for year, gender, day-type and level of deprivation.

^‡95% CI and p-value derived from a linear mixed effects model.

^§M (male) F (female).

^∥Vitamin C log transformed; geometric means and ratios reported.