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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).