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Table 2 Selected percentiles, mean, number and percentage of people with urinary mercury concentrations above 7 μg Hg/L

From: Dental amalgam and urinary mercury concentrations: a descriptive study

Characteristic

6-79 Years

6-11 Years

12-19 Years

20-39 Years

40-59 Years

60-79 Years

Women 16-49 Years

AMALGAM FREE

95 th Percentile

0.89E

0.62

0.77E

0.93E

_

_

0.93E

95% CI

(0.5 - 1.28)

(0.41 - 0.82)

(0.44 -1.09)

(0.43 -1.43)

(0.41 - 1.45)

99 th Percentile

2.31

1.38E

1.66

_

2.33E

2.32E

_

95% CI

(1.48 -3.13)

(0.81- 1.95)

(1.10– 2.22)

(1.15 -3.52)

(0.95 -3.7)

99.9 th Percentile

_

2.72E

_

_

4.28E

_

_

95% CI

(1.52 - 3.92)

(2.31 -6.24)

mumc

0.10

0.08

0.10

0.11

0.11E

0.09

0.12

95% CI

(0.08 - 0.12)

(0.06 - 0.09)

(0.08 - 0.12)

(0.09 - 0.14)

(0.08 - 0.16)

(0.07 - 0.12)

(0.09 - 0.16)

OVERALL

95 th Percentile

2.95

1.92E

2.32

2.27

3.5

3.08

2.88

95% CI

(2.56 - 3.34)

(1.02 - 2.82)

(1.52 -3.11)

(1.86 -2.69)

(2.23 -4.78)

(2.59 - 3.57)

(1.88 - 3.88)

99 th Percentile

7.34E

4.36E

4.64E

_

8.01E

7.31E

11.78E

95% CI

(4.27 -10.41)

(2.44 - 6.29)

(2.81 - 6.47)

 

(4.38 -11.65)

(3.89 - 10.73)

(3.82 - 19.75)

99.9 th Percentile

17.45

7.59

_

17.27

17.35E

15.15E

18.14

95% CI

(14.22 - 20.68)

(5.17 - 10.01)

 

(12.03 -22.51)

(9.72 - 24.98)

(9.26 - 21.04)

(15.66 - 20.61)

mumc

0.22

0.12

0.15

0.20

0.31

0.22

0.23

95% CI

(0.19 - 0.25)

(0.10 - 0.14)

(0.12 - 0.18)

(0.17 - 0.23)

(0.26– 0.37)

(0.18 - 0.29)

(0.19 - 0.27)

Number above

49

2

3

13

19

12

20

7 μg Hg/L

% above

<1.84

_

_

<3.26

<3.37

<2.35

<4.37

7 μg Hg/L

       
  1. Estimates representative for the Canadian general population (based on weighted data).