Table 3.

Association between daily output of metal ions and early renal markers

Renal markers	Daily output of cobalt		Daily output of chromium
	Spearman’s Rho (ρ)	p	Spearman’s Rho (ρ)	p
Albumin	0.2	0.31	0.2	0.32
RBP	0.22	0.28	0.13	0.53
Beta2m	0.2	0.31	0.03	0.88
Fibronectin	0.08	0.69	0.03	0.90
BBA	−0.14	0.49	−0.05	0.81
NAG	0.18	0.36	0.10	0.61

RBP = retinol binding protein; Beta2m = beta 2 microglobulin; BBA = Brush Border antigen; NAG = N-acetyl-β-D-glucosaminidase.