Table 3.

Pearson correlation for among different variables in the study.

	P_Pb_U	P_Cr_U	P_Cd_U	P_Cu_B	P_Zn_B	C_Pb_U	C_Cr_U	C_Cd_U	C_Cu_B	C_Zn_B
P_Pb_U	1
P_Cr_U	.776∗∗	1
P_Cd_U	.401∗	.396∗	1
P_Cu_B	.405∗	.675∗∗	0.168	1
P_Zn_B	.551∗∗	.542∗∗	.368∗	.614∗∗	1
C_Pb_U	-0.041	0.001	-0.301	0.013	-0.219	1
C_Cr_U	0.239	0.016	-0.124	0.013	-0.058	0.365	1
C_Cd_U	-0.092	-0.047	-0.251	0.148	-0.342	.462∗	0.079	1
C_Cu_B	-0.151	-0.223	-0.282	-0.172	-0.436	-0.009	-0.02	0.158	1
C_Zn_B	-0.095	-0.296	-0.385	-0.01	-0.209	0.042	0.204	0.057	0.108	1

P: CKD; C: Control; U: Urine; B: Blood Serum.

^∗Correlation is significant at the 0.05 level (2-tailed).

^∗∗Correlation is significant at the 0.01 level (2-tailed).