Table 4.

Means of food group intake across quartiles of the NRF 9·2 index score^*

Food group	NRF9·2 index score†								P ‡
	Q1		Q2		Q3		Q4
	Median	25th percentile, 75th percentile	Median	25th percentile, 75th percentile	Median	25th percentile, 75th percentile	Median	25th percentile, 75th percentile
n	164		164		164		164
NRF9·2 index score	22·04	26·43, 31·62	36·62	34·79, 38·09	43·28	41·72, 45·18	54·69	50·74, 59·57	< 0·0001
Cereal	463·25	318·20, 619·13	409·25	296·88, 520·00	373·90	271·63, 490·60	304·75	230·00, 416·35	< 0·0001
Vegetable	75·00	32·13, 129·80	128·00	67·55, 204·93	166·50	92·88, 249·75	208·50	102·75, 298·90	< 0·0001
Fruits	0	0, 172·00	3·5	0, 230·00	115·00	0, 299·55	250·55	101·85, 500·00	< 0·0001
Milk and milk products	0	0, 0	0	0, 0	0	0, 0	0	0, 9·38	0·006
Bean, nuts and seeds	0	0, 5	0	0, 12·63	0	0, 28·00	4·5	0, 29·70	< 0·0001
Meat, poultry and fish	23·60	0·00, 67·15	25·00	0·00, 68·75	25·00	0·00, 66·87	28·50	0·00, 82·78	0·29
Egg	20	0, 60	30	0, 60·00	41	0, 66·00	60	0, 70·23	0·004
Snacks§	8·00	2·00, 66·00	5·00	2·93, 11·90	5·00	3·00, 9·00	4·3	2·8, 8·18	0·057

^*Values were presented as median (25th percentile, 75th percentile).

^†Q1, 1st quartile; Q2, 2nd quartile; Q3, 3rd quartile; Q4, 4th quartile.

^‡The differences of food groups’ intake among quartiles of the NRF 9.2 index score were tested by Kruskal–Wallis test.

^§ Snacks includes cookies, fast food, sugar preserved fruits and so on.