Table 1.

Differences in safety perception for foreign and Korean workers according to general characteristics of responders

Characteristics		n		Mean		SD		t/F∗		P†
		K	F	K	F	K	F	K	F	K	F
Sex	Male	675	135	3.47	3.70	0.381	0.441	0.937	0.471	0.585	0.494
	Female	76	5	3.39	3.84	0.313	0.141
Age (y)	20s	64	27	3.47	3.94	0.395	0.235	0.881	7.437	0.684	<0.001
	30s	231	44	3.48	3.78	0.398	0.392
	40s	244	40	3.44	3.65	0.363	0.439
	>50s	212	29	3.46	3.45	0.358	0.500
Education level	<Middle school	120	41	3.43	3.65	0.343	0.455	0.924	5.589	0.609	0.005
	High school	266	80	3.42	3.79	0.378	0.368
	University	362	20	3.50	3.46	0.381	0.536
	Graduate school	3	0	3.73	–	0.375	–
Korean language level	None at all	–	5	–	3.36	–	0.194	–	7.582	–	<0.001
	Poor	–	18	–	3.49	–	0.601
	Intermediate	–	23	–	3.85	–	0.354
	Good	–	60	–	3.86	–	0.359
	Very good	–	34	–	3.50	–	0.381
Safety training records	Yes	729	136	3.47	3.71	0.373	0.438	1.413	1.575	0.048	0.121
	No	22	4	3.24	3.44	0.370	0.126
Workplace accident	Yes	85	13	3.34	3.39	0.388	0.371	1.503	7.868	0.024	0.006
	No	666	127	3.48	3.74	0.371	0.429
Nationality	Korea	751	–	3.46	–	0.375	–	7.379		<0.001
	China	–	104	–	3.76	–	0.400
	Vietnam	–	15	–	3.49	–	0.609
	Kazakhstan	–	7	–	3.96	–	0.177
	The Philippines	–	4	–	3.31	–	0.191
	Bangladesh	–	4	–	3.43	–	0.693
	Thailand	–	3	–	3.44	–	0.120
	Kyrgyzstan	–	1	–	3.72	–	–
	Pakistan	–	1	–	3.28	–	–
	India	–	1	–	3.56	–	–
Total		751	140	3.45	3.71	0.370	0.372

F, foreigner; K, Korean; SD, standard deviation.

^∗Variation between sample means/variation within the sample.

^†Probability for the given statistical model when the null hypothesis is true.