Table 3. Correlations of Chemical Relatedness between 2003–2004 NHANES and Current Study by Different Chemical Classes.

	females		males		couples
chemical classb	Pearson r	n	Pearson r	n	Pearson r	n
blood metals	0.07	3	0.13	3	–0.04	6
OCPs	0.69	36	0.51	36	0.25	72
PCBs	0.88	561	0.88	561	0.77	1122
PFASs	0.31	21	0.29	21	0.32	42
phthalates	0.90	78	0.89	78	0.34	156
phytoestogens	0.98	15	0.97	15	0.86	30
polybrominated chemicals	0.76	55	0.74	55	0.77	110
urine metalloids	0.41	3	–0.78	3	0.34	6
urine metals	0.82	55	0.78	55	–0.01	110
total	0.84	827	0.84	827	0.67	1654

^aPearson r, Pearson correlation coefficients of the chemical relatedness (spearman correlations of chemicals) between National Health and Nutrition Examination Survey (NHANES) and this study; n, sample size.

^bRestricted to 9 chemical classes that were measured in both studies.