. 2014 Oct 3;9(10):e108955. doi: 10.1371/journal.pone.0108955

Table 4. Correlation analysis of the relationship among water constituents, serum mineral levels, maternal reproductive and pups' developmental parameters.

	Maternal Serum Calcium	Maternal Serum Magnesium	Maternal Serum Phosphorus	Maternal Serum Copper	Maternal Serum Zinc	Maternal Serum estradiol	Paternal serum Testosterone	Maternal Fertility Index	Maternal Gestation Index	Pup's Memory Ability
Water TDS	0.075	0.053	−0.002	0.163	0.675^**	0.196	−0.047	0.020	−0.450	0.09
Water COD_Mn	0.061	−0.070	0.020	0.356^**	−0.009	−0.049	−0.172	0.669	−0.975^**	−0.305^**
Water Calcium	0.072	−0.035	0.003	0.308^**	0.500^**	0.141	−0.092	0.220	−0.738	−0.096
Water Magnesium	0.077	−0.025	0.007	0.291^**	0.551^**	0.157	−0.085	0.189	−0.683	−0.061
Water Zinc	0.055	−0.082	−0.001	0.372^**	0.201	0.038	−0.133	0.437	−0.943^**	−0.261
Water Copper	−0.042	0.148	−0.042	−0.260^**	−0.243	−0.099	0.028	−0.059	0.250	0.118
Water Arsenic	0.034	−0.112	−0.004	0.381^**	−0.079	−0.054	−0.150	0.567	−1.00^**	−0.368^**
Water Trichlormethane	−0.105	−0.011	−0.041	−0.256^*	−0.597^*	−0.157	0.104	0.715	−0.406	−0.010
Water Perchlormethane	0.009	−0.127	0.060	0.181	−0.652^**	−0.237^*	−0.130	−0.295	−0.001	−0.353^*
Maternal Serum Calcium	1.00	0.718^**	0.671^**	0.229^*	−0.047	0.038	—	0.144	0.049	−0.166
Maternal Serum Magnesium	0.718^**	1.00	0.734^**	0.088	−0.001	0.067	—	−0.101	0.442	−0.130
Maternal Serum Phosphorus	0.671^**	0.734^**	1.00	0.005	−0.086	0.075	—	−0001	0.378	−0.132
Maternal Serum Copper	0.229^*	0.088	0.005	1.00	0.165	−0.154	—	0.879^**	−0.826	−0.079
Maternal Serum Zinc	−0.047	−0.001	−0.086	0.165	1.00	−0.227	—	0.176	−0.225	0.316^**

*, p<0.05,

**, p<0.01 indicate significant difference level.

No statistically correlation between other water constituents and pups' development parameters, between maternal serum elements and pups' development parameters (data not shown).