Table 3.

The diet quality score across all days for each participant according to the type of usual lunch type reported and differences in the overall diet quality score by gender.

What do you usually have for lunch?	Mean overall DQI-A%				Overall diet quality score (mean of all days recorded)	Gender differences in the overall diet quality score (meal of all days recorded)
	Day Number
	Day 1	Day 2	Day 3	Day 4
	n = 2118	n = 2118	n = 2118	n = 2084	n = 2118	n = 2118
						Male as reference group
Cooked school meal	22.3	22.4	21.3	21.3	21.8	B	CI		P-value
						−0.4	−2.8	1.9	0.7
Cold school meal	20.6	20.8	20.4	20.0	20.5	B	CI		P-value
						−0.3	−3.7	3.2	0.9
Packed lunch (from home)	25.3	23.9	23.2	23.1	23.8	B	CI		P-value
						0.9	−1.3	3.0	0.4
Buy lunch from shop/café	16.3	14.6	14.6	13.7	14.8	B	CI		P-value
						1.8	−1.3	4.9	0.2
Go home	22.4	23.3	21.4	19.2	21.6	B	CI		P-value
						−1.6	−10.7	7.5	0.7
Do not eat lunch	16.7	19.4	22.2	18.1	19.1	B	CI		P-value
						0.5	−11.8	12.8	0.9