Table 1.

Biochemical parameters in exposed and control groups.

	Exposed (n = 40)	Controls (n = 40)	t-Test	P-value
Serum Cd (µg/L)	1.02 ± 0.6	0.60 ± 0.2	2.47	0.006**
Serum OPG (ng/L)	668.9 ± 174.6	534.4 ± 140.4	3.79	0.039**
Serum Ca (mg/dL)	10.3 ± 0.8	12.6 ± 1.2	0.99	NS
U-Ca (mg/g creat)	0.52 ± 0.04	0.65 ± 0.06	1.05	0.048*
U-Cd (µg/g creat)	3.28 ± 0.04	2.94 ± 0.02	0.91	NS

*P < 0.05, significant; **P < 0.01, highly significant. NS: Nonsignificant (P ≥ 0.05).