Decision Making Method Based on Importance-Dangerousness Analysis for the Potential Risk Behavior of Construction Laborers

Table 2

Summary of the questionnaire survey.

Factor	Category	Korean		Foreign
		The number	Ratio; (%)	The number	Ratio; (%)
Sex	Male	130	97	123	95
	Female	4	3	6	5
Age	~29	3	2	3	2
	30–39	22	16	12	9
	40–49	53	40	60	47
	50~	56	42	54	42
Work	Steel-frame	20	15	40	31
	Bricklayers	7	5	2	2
	Plastering	5	4	9	7
	Heating system	2	1	1	1
	Waterproof	5	4	10	8
	Carpenter	14	10	15	12
	Metal	8	6	0	0
	Windows and doors	4	3	1	1
	Masonry	9	7	2	2
	Painting	0	0	1	1
	Insulation	4	3	3	2
	Interior finishing	2	1	3	2
	Frame	54	40	42	33
Career	~1 year	10	7	7	5
	1–5 years	28	21	60	47
	5–10 years	31	23	42	33
	10 years~	65	49	20	16