Table 2.

Correlation between urinary Cd excretion rates, age, iron store status, and markers of glomerular and tubular functions.

	Men		Women		All subjects
Variables	r-Value	p-Value	r-Value	p-Value	r-Value	p-Value
Age	0.47a	< 0.001	0.20a	0.06	0.25a	0.003
Iron store status	−0.01a	0.46	0.17a	0.09	0.06a	0.26
Kidney function biomarkers
Urine protein	0.23	0.05	0.30	0.01	0.27	0.003
Urine β2-MG	0.20	0.07	0.09	0.23	0.14	0.06
Urine NAG	0.51a	< 0.001	0.44a	< 0.001	0.49a	< 0.001

The r-values are the Spearman’s rank correlation coefficients unless otherwise specified. Significance of the correlation between each pair of variables in row and column is identified by the p-values ≤0.05.

^aPearson’s r-correlation coefficient value.