Table 2.

Breakdown of concentrations of arsenic, and manganese in whole blood of AESOP Study participants in East Chicago. NHANES data from 2017 to 2018 was filtered to match the demographic characteristics of AESOP subject types. Statistically significant differences were observed between NHANES and AESOP (2 years combined) mothers, all children, and female children. NHANES data for As was not available.

Adult Women (Mothers)
		2017–2018	2018–2019	NHANES 2017–2018
Measurement
Blood Arsenic (μg/L)	Mean ± SD	0.53 ± 0.29	0.45 ± 0.21
	Median	0.42	0.31
	Geo Mean	0.48	0.41
	IQR	0.21	0.20
Blood Manganese (μg/L)	Mean ± SD	12.16 ± 3.43	12.37 ± 3.65	10.66 ± 3.90 **
	Median	11.19	12.21	10.03
	Geo Mean	11.69	11.84	10.03
	IQR	5.12	5.91	4.65
Children
		2017–2018	2017–2018	NHANES 2017–2018
Measurement (male/female)
Blood Arsenic (μg/L)		0.53 ± 0.34	0.34 ± 0.214
	Mean ± SD	(0.53 ± 0.27 / 0.52 ± 0.39)	(0.23 ± 0.09 / 0.35 ± 0.16)
	Median	0.43 (0.45 / 0.38)	0.30 (0.31 / 0.30)
	Geo Mean	0.45 (0.48 / 0.44)	0.32 (0.32 / 0.32)
	IQR	0.33 (0.37 / 0.30)	0.20 (0.11 / 0.20)
Blood Manganese (μg/L)		12.37 ± 5.22	11.60 ± 3.57	10.33 ± 3.63 *
	Mean ± SD	(9.57 ± 2.98 / 14.42 ± 5.62)	(10.35 ± 3.33 / 12.13 ± 3.66)	( 9.28 ± 2.84 / 11.33 ± 4.01*)
	Median	11.02 (9.79 / 11.92)	11.10 (11.36 / 10.98)	10.33 (8.75 / 10.49)
	Geo Mean	11.47 (9.16 / 13.53)	11.07 (9.86 / 11.63)	9.79 (8.89 / 10.72 )
	IQR	5.04 (3.71 / 7.05)	5.91 (3.58 / 6.66)	4.12 (3.33 / 4.82)

Two sample t test

^*p < 0.05

^**p < 0.01