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CDC Surveillance Data, 1997-2006

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    The Centers for Disease Control and Prevention (CDC) Lead Poisoning Prevention Branch (LPPB) compiles state surveillance data for children age <72 months who were tested for lead at least once between January 1, 1997 and December 31, 2005. This analysis uses the following surveillance definitions for all states:

    • Test: Any blood lead level sample (BLL) drawn (capillary, venous or unknown sample type) on a child that produces a quantifiable result and is analyzed by a CLIA-certified facility or an approved portable device. A blood lead test may be collected for screening, confirmation or follow-up.
    • Screening test: A blood lead test for a child age <72 months who previously did not have a confirmed elevated BLL (NOTE: A child may be screened in multiple years or even multiple times within a given year, but would be counted only once for each year).
    • Confirmed elevated BLL (EBLL): A child with one venous blood specimen ≥10 mg/dL, or any combination of two capillary and/or unknown blood specimens ≥10 mg/dL drawn within 12 weeks of each other.

    To classify confirmed elevated BLLs, two elevated capillary or unknown tests (we assume unknown tests are capillary) must be drawn within 12 weeks (84 days). Once a child has had one confirmed elevated BLL, if in subsequent years he or she has another elevated test result, regardless of the test type, we include that child in the tables showing the number of children with confirmed elevated BLLs for each year he or she continues to have an elevated BLL test result (prevalence data). However, a child is counted only once for each year in which he or she is tested and has an elevated BLL. In a subsequent year, if a child with a confirmed elevated BLL has no follow-up test or only follow-up tests that are below 10 mg/dL, the child would not be counted with confirmed elevated BLLs for that year.

    National Data (1997-2006):

    Tested and Confirmed Elevated Blood Lead Levels by State, Year and Blood Lead Level Group for Children <72 mos

     

    State Data by County (2005):

                

                State data by county not available for:
                            AK, AR, CO, HI, ID, MS, MT, ND, NM, NV, SC, SD, UT, WA, WY

     

    Last updated: 11/29/2007
    Content source: National Center for Environmental Health