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Table 2 Description of the concentration of EDCs including geometric mean, 95% confidence interval (95% CI), percent above LOD, percent who were included in this analysis (NHANES 1999–2002)

From: A path analysis of multiple neurotoxic chemicals and cognitive functioning in older US adults (NHANES 1999–2002)

Chemical

LODa (LAb/NLAc)

Above LOD (%)

Missing (%)

Geometric Mean (95% CI)

Range

Geometric Mean (95% CI)

Range

Metals μg/dL

 Lead (μg/dL)

0.3/NA

100

0

2.17 (2.07, 2.27)

0.4-16.4

NA

NA

 Cadmium (μg/L)

0.3/NA

86

0

0.49 (0.46, 0.52)

0.2-4.7

NA

NA

Non-Dioxin Like (ng/g)

   

Lipid-adjusted

Non-lipid-adjusted

 PCB 74

3.95/0.03

92

0.70

17.78 (16.23, 19.49)

2.8-144

0.12 (0.11, 0.13)

0.02-0.89

 PCB 99

2.96/0.03

80

2.10

10.65 (9.88, 11.48)

2.1-132

0.07 (0.07, 0.08)

0.02-0.80

 PCB 138

2.96/0.03

92

0.56

44.28 (41.40, 47.37)

2.1-310

0.29 (0.27, 0.31)

0.04-4.01

 PCB 146

2.26/0.03

74

1.26

7.86 (7.39, 8.35)

1.6-68.6

0.05 (0.05, 0.05)

0.02-0.69

 PCB 153

2.96/0.03

95

0.29

66.99 (63.66, 70.50)

2.1-433

0.44 (0.42, 0.47)

0.02-5.26

 PCB 170

2.96/0.03

91

4.76

20.59 (19.76, 21.46)

2.1-129

0.14 (0.13, 0.14)

0.02-1.74

 PCB 180

6.20/0.03

97

0.70

51.79 (49.13, 54.60)

4.4-397

0.34 (0.32, 0.36)

0.02-3.65

 PCB 187

2.96/0.03

94

0.14

14.93 (14.25, 15.64)

2.1-178

0.10 (0.09, 0.10)

0.02-1.16

Dioxin Like (ng/g)

   

Lipid-adjusted

Non-lipid-adjusted

 PCB 118

2.96/0.03

93

0.42

20.16 (18.43, 22.05)

2.1-361

0.13 (0.12, 0.14)

0.02-1.95

 PCB126d

2.54/21.73

75

11.19

33.55 (29.98, 37.55)

1.8-402

223.05 (199.26, 249.68)

15.41-8,188

 PCB 156

2.26/0.03

82

1.68

10.14 (9.47, 10.87)

1.6-62.1

0.07 (0.06, 0.07)

0.02-1.03

 PCB 169d

4.65/32.01

84

11.19

31.66 (29.66, 33.79)

3.3-172

210.45 (197.19, 224.60)

22.7-3,340.4

  1. a LOD Limit of detection for lipid adjusted congeners
  2. b LA Lipid adjusted
  3. c NLA Non-lipid-adjusted
  4. dMeasured in fg/g