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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)