Table 2. Proportion of subjects who stated consumption of each food in a given 24-hour according to FFQ category.

	Frequency from the FFQ										p-value for linear associationa)
	Never		<= 1/Week		2-4/Week		Almost Daily		Missing
	n	%	n	%	n	%	n	%	n	%
Animal Products
Beef and Pork	24	32.4	314	43.9	1057	57.8	169	71.0	63	42.3	0.001
Chicken	16	8.9	281	22.1	329	28.4	20	29.9	51	15.6	0.001
Pork Products	61	14.4	236	18.1	202	28.9	29	37.2	73	14.5	0.001
Dairy Products	93	14.6	183	17.6	118	26.5	100	38.6	88	14.2	0.001
Milk	127	27.0	230	36.8	302	46.5	617	68.7	112	31.0	0.001
Eggs	28	53.9	358	66.1	964	71.6	772	83.4	88	63.3	0.001
Fish	25	62.5	592	80.5	1450	84.9	354	90.5	101	77.1	0.001
Fish (broiled)	32	26.5	521	34.8	356	37.3	30	47.6	108	29.4	0.005
Fish (dry)	68	13.2	186	13.6	41	10.6	4	7.0	90	13.3	0.588
Vegetables and Fruit
Green-yellow Vegetables	21	75.0	583	83.9	1229	88.4	615	90.4	171	80.7	0.001
Seaweeds	15	48.4	378	58.0	866	64.2	602	73.9	83	52.5	0.001
Fruit	24	47.1	293	65.7	786	79.2	1240	88.6	78	66.7	0.001
Soya Products
Tofu	11	36.7	484	60.7	1094	67.9	356	80.4	72	58.1	0.001
Miso Soup	42	41.2	333	54.2	596	63.2	1014	84.7	87	58.8	0.001
Beverages
Black Tea	39	3.6	67	8.6	55	15.4	78	37.3	32	5.7	0.001
Coffee	104	16.3	243	37.0	304	58.8	718	81.2	71	23.0	0.001
Fizzy Drinks	12	1.4	39	4.6	34	5.6	30	11.7	11	2.6	0.001
	Never		<= 1/Day		2-4/Day		5+/Day		Missing
Green Tea	30	51.7	182	59.5	1267	75.7	702	81.2	74	71.8	0.001
Cereal Products	Never		<= 1/Day		2/Day		3+/Day		Missing
Rice	3	75.0	202	97.1	1511	99.4	1175	99.7	93	99.0	0.124
Bread	74	25.1	1212	68.5	59	81.9	0	0.0	266	30.8	0.001
Other Foods	Never		<= 1/Week		2-4/Week		Almost Daily		Missing
Salted Foods	102	51.5	337	68.2	455	69.6	1202	81.4	107	58.5	0.001
Confectionery	104	30.5	293	36.7	487	48.9	371	66.3	93	30.0	0.001

a) Based on the Mantel-Haenszel statistics, excluding missing category