Table 2. Relationship analysis of many eye-tracking factors and selecting menu frequency

	Menu	BBB	HCCB	ESCB	WSB	CCB	BUB	SB	BAB	N	χ2
	N1)(%)2)	4(6.3)	25(39.7)	9(14.3)	7(11.1)	3(4.8)	3(4.8)	6(9.5)	6(9.5)	63(100)
Gender	Male	1(4.5)	7(31.8)	5(22.7)	1(4.5)	2(9.1)	2(9.1)	1(4.5)	3(13.6)	22(100)	47.032***
	Female	3(7.3)	18(43.9)	4(9.8)	6(14.6)	1(2.4)	1(2.4)	5(12.2)	3(7.3)	41(100)
Diet experience	Experienced	2(4.4)	17(37.8)	8(17.8)	5(11.1)	3(6.7)	-	5(11.1)	5(11.1)	45(100)	71.531***
	Inexperienced	2(11.1)	8(44.4)	1(5.6)	2(11.1)	-	3(16.7)	1(5.6)	1(5.6)	18(100)
Saw nutrition labels	Did	-	7(41.2)	3(17.6)	1(5.9)	-	1(5.9)	2(11.8)	3(17.6)	17(100)	30.926***
	Did not	4(8.7)	18(39.1)	6(13.0)	6(13.0)	3(6.5)	2(4.3)	4(8.7)	3(6.5)	46(100)
Education experience of nutrition label	Experienced	3(10.3)	13(44.8)	4(13.8)	3(10.3)	-	1(3.4)	3(10.3)	2(6.9)	29(100)	29.569***
	Inexperienced	1(2.9)	12(35.3)	5(14.7)	4(11.8)	3(8.8)	2(5.9)	3(8.8)	4(11.8)	34(100)
Major	Culinary arts	1(3.2)	14(45.0)	2(6.8)	4(12.9)	-	2(6.4)	5(16.1)	3(9.6)	31(100)	61.604***
	Others	3(9.4)	11(34.5)	7(21.6)	3(9.4)	3(9.4)	1(3.1)	1(3.1)	3(9.4)	32(100)
Reason	Ingredients	1(5.9)	6(35.3)	2(11.8)	2(11.8)	1(5.9)	1(5.9)	4(23.5)	-	17(100)	431.852***
	New	1(20.0)	-	-	1(1.6%)	-	-	-	3(60.0)	5(100)
	Always	-	17(73.9)	2(8.7)	-	2(8.7)	1(4.3)	-	1(4.3)	23(100)
	Image	2(13.3)	2(13.3)	5(33.3)	4(26.7)	-	-	1(6.7)	1(6.1)	15(100)
	Price	-	-	-	-	-	1(50.0)	-	1(50.0)	2(100)
	Calorie	-	-	-	-	-	-	1(100)	-	1(100)
Monthly expenditure for dining out	200,000 under	3(14.3)	7(33.3)	1(4.8)	3(14.3)	-	1(4.8)	3(14.3)	3(14.3)	21(100)	203.476***
	200,000-290,000	1(4.3)	7(30.4)	5(21.7)	2(8.7)	3(13.0)	2(8.7)	2(8.7)	1(4.3)	23(100)
	300,000-390,000	2(28.6)	3(42.9)	1(14.3)	-	-	-	-	1(14.3)	7(100)
	400,000-490,000	-	3(37.5)	1(12.5)	-	2(25.0)	1(12.5)	1(12.5)	-	8(100)
	500,000 over	-	2(50.0)	1(25.0)	1(25.0)	-	-	-	-	4(100)

p<0.001.
N, Number of participants selected.
%, The ratio of the number of participants selected to the total number of participants.
BBB, select big Bulgogi Burger; HCB, select Hot Crispy Chicken Burger; ESCB, select European Smoked Cheeseburger; WSB, select Wild Shrimp Burger; CCB, select Classic Cheeseburger; BUB, select Bulgogi Burger; SB, select Shrimp Burger; BAB, select Barbecue Burger.