Table 2

Biomarkers of exposure in coke oven and control workers

Control			Coke oven			p value
n, number of subjects.
*Median with quartiles (x_25%–x_75%).
HpU (μmol/mol creatinine)
0.6 (0.4; 1.1) n = 50			9.0 (5.5; 14.0) n = 50			0.0000
Non-smoking	Smoking	p	Non-smoking	Smoking	p
0.5 (0.4; 0.6)	0.9 (0.6; 2.0)	0.0063	8.5 (5.4; 13.2)	9.2 (5.8; 16.0)	0.7290
n = 26	n = 24		n = 17	n = 33
MR 98/24 ml
1.2 (0.8; 1.9) n = 45			2.7 (1.5; 4.5) n = 46			0.0018
Non-smoking	Smoking	p	Non-smoking	Smoking	p
0.9 (0.6; 1.2)	2.2 (1.4; 4.9)	0.0000	1.2 (0.6; 1.6)	3.6 (2.5; 5.7)	0.0000
n = 25	n = 21		n = 16	n = 32
MR 1024/24 ml
5.5 (2.6; 12.1) n = 45			18.2 (7.3; 28.4) n = 47			0.0000
Non-smoking	Smoking	p	Non-smoking	Smoking	p
2.8 (1.7; 3.9)	15.0 (9.5; 27.5)	0.0000	5.5 (5.1; 8.0)	24.7 (15.2; 33.9)	0.0000
n = 25	n = 21		n = 16	n = 32