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EH-8.2 Data Details

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EH-8.2 Reduce the mean blood lead levels in children

About the Data

Description of the data source, numerator, denominator, survey questions, and other relevant details about the national estimate.

Data Source: 
National Health and Nutrition Examination Survey
Changed Since the Healthy People 2020 Launch: 
Yes
Measure: 
mean
Baseline (Year): 
1.8 (2003–04)
Target: 
1.6
Target-Setting Method: 
10 percent improvement
Numerator: 

Geometric mean of blood lead levels (BLLs) of children aged 1 to 5 years

Comparable Healthy People 2010 Objective: 
Not applicable
Data Collection Frequency: 
Biennial
Methodology Notes: 

    Recent evidence suggests that children suffer adverse health effects from BLLs substantially lower than 10 μg/dL. Moreover, there is no level of exposure of lead that has been found to be safe for children. Consequently it is important not only to eliminate the prevalence of children with elevated BLLs (i.e. ≥ 10 μg/dL), but to also reduce the central measure of BLLs in the target population.

    See National Report on Human Exposure to Environmental Chemicals for laboratory and analytic methods used.

Revision History

Any change to the objective text, baseline, target, target-setting method or data source since the Healthy People 2020 launch.

Description of Changes Since the Healthy People 2020 Launch: 
In 2014, the original baseline was revised from 1.5 (2005-2008) to 1.8 (2003-2004) to align with other NHANES biomonitoring objectives. The target was adjusted from 1.4 to 1.6 to reflect the revised baseline using the original target-setting method. Periodicity was revised to biennial.

References

Additional resources about the objective

  1. CDC. Preventing Lead Exposure in Young Children: A Housing-Based Approach to Primary Prevention of Lead Poisoning. Atlanta, GA: Centers for Disease Control and Prevention. 2004.3.
  2. Gould, E. Childhood Lead Poisoning: Conservative Estimates of the Social and Economic Benefits of Lead Hazard Control. Environmental Health Perspectives 2009;117(7):1162-1167.