Table 1.

Means (stderr) and prevalence of analysis variables across BLL levels above and below the 50th percentile in US population.

	BLL above 50th Percentile	BLL below 50th Percentile
Allostatic Load	2.16 (0.022)	2.10 (0.024)
Gender	M: 61.7 (0.51)	M:36.3 (0.51)
	F: 38.33 (0.51)	F: 63.7 (0.51)
BMI	27.8 (0.081)	29.5 (0.123)
Race/Ethnicity
A) White	A) 70.1%	A) 72.2%
B) Black	B) 11.3%	B) 10.3%
C) Mexican American	C) 8.5%	C) 7.3%
D) Other Hispanic	D) 5.0%	D) 5.4%
Alcohol	0.06%(0.03)	0.02% (0.01)
Smoking	2.3% (0.20)	1.23%( 0.16)