How do I interpret the screening and blood lead prevalence numbers?
“Screened” refers to a child with at least one test result in a given year. A confirmed test result is one venous test or two capillary tests (within 84 days of each other) greater than or equal to 10ug/dl during a given year. Children can be counted only once per year, but can appear in multiple years. Prevalence is the percentage of confirmed tests in a given category among all the children screened in that year within specific age ranges.
