Table 2.

Correlation between the study parameters (Spearman R values, p < 0.05, NS—non significant)

	Age	Years of work	BMI	PbB mean	PbB last	ZPP mean	ZPP last	Fe	Se	Cu	Zn	CER	HPG
Years of work	0.81
BMI	0.23	NS
PbBmean	0.20	0.27	0.16
PbB	0.23	0.31	NS	0.82
ZPPmean	0.18	0.24	NS	0.75	0.66
ZPP	0.14	0.18	NS	0.71	0.71	0.94
Fe	NS	NS	NS	NS	NS	NS	NS
Se	NS	NS	NS	NS	NS	NS	NS	NS
Cu	0.24	0.22	NS	0.14	0.16	0.28	0.33	NS	NS
Zn	NS	NS	NS	NS	NS	NS	NS	0.25	NS	0.25
CER	0.23	0.26	NS	NS	0.14	0.28	0.27	NS	NS	0.43	NS
HPG	0.21	0.22	0.17	NS	NS	NS	NS	NS	NS	0.23	NS	0.27
TRF	NS	NS	0.18	NS	NS	NS	NS	NS	NS	0.25	NS	NS	0.25