Table 1.

Biological variables in 81 mother–newborn pairs with complete data.

	Arithmetic mean ± SD	Geometric mean	Median	5th Percentile	95th Percentile
Hair Hg (μg/g)
Mother	1.37 ± 0.94	1.19	1.20	0.54	2.90
Ca pump activity (nmol/mg/hr)
Mother	2,545 ± 782	2,411	2,559	1,200	3,703
Cord	2,703 ± 674	2,632	2,689	1,613	3,902
Ca pump activity stimulated by calmodulin (nmol/mg/hr)
Mother	2,963 ± 861	2,824	2,992	1,311	4,312
Cord	3,167 ± 703	3,104	3,114	1,983	4,492
Hair Pb (μg/g)
Mother	3.63 ± 4.47	3.28	1.80	0.10	9.60
Newborn	1.22 ± 1.41	1.98	0.80	0.10	3.80
Blood Pb (μg/L)
Mother	60.0 ± 25.3	56.6	54.5	29.5	99.5
Cord	35.4 ± 17.2	32.9	33.0	14.0	62.0