XRCC1 Arg399Gln was associated with repair capacity for DNA damage induced by occupational chromium exposure

BMC Research Notes

Table 1 The chromium concentration in erythrocytes (μg/l) and DNA damage in exposed and control subjects

	Exposed subjects n = 149	Control subjects n = 77	P value ^a
chromium concentration in erythrocytes (μg/l)	4.41 (2.50–5.29)	1.54 (0.61–2.98)	<0.001
Olive tail moment	1.13 (0.47–1.45)	0.12 (0.04–0.22)	<0.001
Tail Length	11.77 (6.42–14.84)	3.26 (3.00–4.00)	<0.001
Tail DNA%	3.69 (2.50–5.29)	0.59 (0.19–1.11)	<0.001

1. Data were presented as median (P₂₅-P₇₅).
2. P values were calculated with rank sum test between the exposed and control subjects.
3. Owing to missing detect in DNA damage and genotype, the numbers of subjects in Table 2 were less 157 in exposed group and 93 in control group.

ISSN: 1756-0500