Table 2

Characterisation of exposure

		Ge in urine of exposed workers (μg/g creatinine)
		Before shift^2-151				After shift
		Monday	Friday			Monday	Friday
n	65	69		75	75
Geometric mean (GSD)	1.36 (2.50)	3.16 (3.61)		4.22 (4.96)^2-150	4.34 (5.86)^2-150
Median	1.14	2.56		3.67	3.90
Range	0.23–20.21	0.30–70.83		0.16–160.00	0.12–194.58

↵2-150 p<0.01 v Monday, before shift (Dunnett's test).
↵2-151 10 And six samples had Ge concentrations below detection limit, on Monday and Friday, respectively.