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Table 2 Geometric means and geometric standard deviations of metals overall and by NHANES cycle

From: Construction of environmental risk score beyond standard linear models using machine learning methods: application to metal mixtures, oxidative stress and cardiovascular disease in NHANES

 

Cycle

Overall

N = 9664

2003-2004

2005-2006

2007-2008

2009-2010

2011–2012

2013-2014

N = 1443

N = 1418

N = 1664

N = 1884

N = 1557

N = 1698

In whole blood

 Lead, μg/dL

1.67 (1.92)

1.47 (2.01)

1.49 (1.91)

1.31 (1.95)

1.13 (2.01)

1.01 (1.97)

1.32 (2.00)

 Cadmium, μg/L

0.39 (2.27)

0.37 (2.17)

0.39 (2.15)

0.38 (2.13)

0.36 (2.27)

0.33 (2.30)

0.37 (2.22)

 Total Mercury, μg/L

0.88 (2.78)

0.96 (2.54)

0.90 (2.58)

1.01 (2.59)

0.94 (2.87)

0.87 (2.70)

0.93 (2.68)

In urine, μg/L

 Antimony

0.08 (1.81)

0.07 (2.29)

0.06 (2.15)

0.06 (2.22)

0.05 (2.00)

0.04 (2.36)

0.06 (2.21)

 Total Arsenic

8.92 (3.13)

9.91 (3.21)

8.77 (2.99)

10.07 (3.25)

8.81 (3.29)

7.14 (3.06)

8.88 (3.17)

 Arsenous acid

0.83 (1.21)

0.87 (1.18)

0.87 (1.21)

0.88 (1.24)

0.45 (1.63)

0.32 (2.84)

0.65 (1.91)

 Arsenic acid

0.73 (1.18)

0.73 (1.21)

0.72 (1.17)

0.73 (1.19)

0.64 (1.21)

0.57 (1.13)

0.68 (1.21)

 Arsenobetaine

1.77 (5.15)

2.17 (5.81)

1.45 (5.55)

1.82 (6.17)

2.75 (4.31)

2.27 (3.85)

1.99 (5.19)

 Arsenocholine

0.41 (1.18)

0.43 (1.21)

0.43 (1.19)

0.44 (1.35)

0.21 (1.41)

0.10 (1.78)

0.30 (1.91)

 Dimethylarsonic acid

3.84 (2.20)

4.01 (2.18)

3.88 (2.19)

3.87 (2.39)

4.14 (2.41)

3.46 (2.19)

3.85 (2.27)

 Monomethylacrsonic acid

0.82 (1.65)

0.85 (1.56)

0.85 (1.56)

0.83 (1.60)

0.79 (1.55)

0.42 (2.41)

0.73 (1.85)

 Barium

1.29 (2.64)

1.33 (2.80)

1.28 (2.71)

1.30 (2.59)

1.07 (2.69)

0.97 (2.79)

1.20 (2.72)

 Cadmium

0.29 (2.69)

0.26 (2.74)

0.27 (2.65)

0.25 (2.62)

0.22 (2.78)

0.18 (2.94)

0.24 (2.77)

 Cobalt

0.31 (2.24)

0.37 (2.27)

0.35 (2.16)

0.34 (2.28)

0.31 (2.29)

0.37 (2.27)

0.34 (2.26)

 Cesium

4.54 (2.08)

4.63 (2.02)

4.38 (1.97)

4.11 (1.94)

3.89 (2.00)

3.92 (1.99)

4.22 (2.00)

 Lead

0.70 (2.15)

0.65 (2.43)

0.57 (2.34)

0.53 (2.33)

0.41 (2.45)

0.32 (2.51)

0.51 (2.47)

 Molybdenum

38.27 (2.42)

42.97 (2.33)

42.17 (2.43)

40.46 (2.37)

36.95 (2.41)

32.42 (2.47)

38.64 (2.42)

 Thallium

0.14 (2.12)

0.15 (2.06)

0.14 (2.06)

0.14 (2.05)

0.15 (2.07)

0.14 (2.14)

0.14 (2.09)

 Tungsten

0.06 (2.61)

0.08 (2.74)

0.09 (2.76)

0.07 (2.67)

0.07 (2.69)

0.05 (2.95)

0.07 (2.77)

 Uranium

0.01 (2.23)

0.01 (2.63)

0.01 (2.75)

0.01 (2.70)

0.01 (2.44)

0.01 (2.97)

0.01 (2.65)

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Environmental Health

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