Analysis of Wisconsin Childhood Lead Poisoning Data
Statewide surveillance of childhood lead poisoning in
Wisconsin has been conducted since 1991. Lead poisoning in children is
defined in Wisconsin Statute Chapter
as a level of lead in the blood of 10 or more micrograms per 100 milliliters of
Due to the wealth of research showing significant learning,
behavioral and lifelong health effects of lead on children at levels below 10 mcg/dL, in May
2012, CDC lowered the level of concern to the reference value of 5 mcg/dL
for precautionary action. This increases the number of children found to
be lead exposed by a factor of 5.
In Wisconsin, how many children have been lead poisoned over the last ten years?
of children tested for lead poisoning remained static from
2004 to 2006 at about 80,000 children per year and then increased in 2007 through
2011 to more than 100,000 children. After 2010, testing started to
decline again (see graph below; click on it to enlarge for easier
The time trend for the number of children
found to be lead poisoned (10 mcg/dL) was on the decline from 2000 to
2013, however, looking at the number of children at the lower reference
value of 5 mcg/dL, the increase in the number of children is sizeable
(see graph below; click on it to enlarge for easier viewing.).
Which Wisconsin children are most at risk for lead poisoning?
Age of Child
Age of Housing
Racial and Ethnic Disparities
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Page - Lead-Safe Wisconsin
May 02, 2014