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Table 3
Percentage distribution by selected ranges of blood lead concentrations, by age group, household population aged 6 to 79 years, Canada, March 2007 to February 2009

Standard table symbols

Age group (years) and sex 0 to less than 2 μg/dL (0<0.10 μmol/L) 2 to less than 5 μg/dL (0.10<0.24 μmol/L) 5 to less than 10 μg/dL (0.24<0.48 μmol/L) 10 μg/dL or higher (≥0.48 μmol/L)
% 95% confidence interval % 95% confidence interval % 95% confidence interval % 95% confidence interval
from to from to from to from to
Total 6 to 79 74.5 70.0 78.6 23.3 19.8 27.1 1.8E 1.1 3.0 < 1.0 . .
Age group
6 to 11 95.5 91.3 97.7 < 8.6 < 1.4 < 0.7
12 to 19 97.2 94.9 98.5 2.5E 1.4 4.5 < 1.8 < 1.0
20 to 39 84.1* 79.7 87.6 14.7 11.4 18.7 < 3.3 < 2.9
40 to 59 68.4* 61.2 74.8 29.4 23.7 35.8 1.9E 1.0 3.6 < 1.9
60 to 79 47.0* 40.1 54.0 47.3 41.6 53.0 4.9E 2.8 8.4 < 2.0
Sex
Males 69.7 64.2 74.7 27.2 23.0 31.8 2.5E 1.5 4.3 < 1.7
Females 79.4 73.9 83.9 19.4 15.1 24.5 1.2E 0.6 2.3 < 0.8
*significantly different from estimate for 6 to 11 age group (p < 0.05 adjusted for number of comparisons)
significantly different from estimate for males (p < 0.05)
E use with caution (coefficient of variation 16.6% to 33.3%)
... not applicable
Note: If coefficient of variation of estimate exceeds 33%, estimate is indicated as being less than upper limit of 95% confidence interval.
Source: 2007 to 2009 Canadian Health Measures Survey.