Arsenic speciation analysis of urine samples from individuals living in an arsenic-contaminated area in Bangladesh

Table 3 Pearson’s correlation coefficient between urinary arsenic species

	log(AsIII)	log(AsV)	log(MMA)	log(DMA)	log(iAs^a)	log(iAs + MMA)	log(sumAs^b)
log(AsIII)
r	1.000	0.654	0.897	0.893	0.988	0.972	0.932
p		<0.001	<0.001	<0.001	<0.001	<0.001	<0.001
log(AsV)
r	0.654	1.000	0.652	0.618	0.737	0.722	0.664
p	<0.001		<0.001	<0.001	<0.001	<0.001	<0.001
log(MMA)
r	0.897	0.652	1.000	0.902	0.902	0.964	0.935
p	<0.001	<0.001		<0.001	<0.001	<0.001	<0.001
log(DMA)
r	0.893	0.618	0.902	1.000	0.897	0.921	0.992
p	<0.001	<0.001	<0.001		<0.001	<0.001	<0.001
log(iAs)
r	0.988	0.737	0.902	0.897	1.000	0.982	0.940
p	<0.001	<0.001	<0.001	<0.001		<0.001	<0.001
log(iAs + MMA)
r	0.972	0.722	0.964	0.921	0.982	1.000	0.962
p	<0.001	<0.001	<0.001	<0.001	<0.001		<0.001
log(sumAs)
r	0.932	0.664	0.935	0.992	0.940	0.962	1.000
p	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001

^aValues are sum of AsIII and AsV
^bValues are concentrations of sum of arsenic compounds detected in speciation analysis

ISSN: 1347-4715