Figure 16: Prevalence of Blood Lead Levels ≥ 10 mcg/dL Among Children Under Age Six Years; 1998 to 2005 Blood Lead Test Data, New York State Excluding New York City

Figure 16 shows the total number and rate of BLLs ≥ 10 mcg/dL among children under age six years for each year between 1998 and 2005. In 2005, a total of 3,666 children had BLLs ≥ 10 mcg/dL, corresponding to a prevalence rate of 18.6 per 1,000 children tested (1.86% of children tested). These measures include children who were newly identified with EBLLs in each of these years as well as those who were first identified with EBLLs in previous years and continued to have EBLLs on follow up testing during the year assessed. Because prevalence data include both incident and follow-up cases, they are higher than incident data for the same year shown in Figure 9.

Trend data show the dramatic improvement since 1998 in both the number and rate of children identified with prevalent BLLs ≥ 10 mcg/dL. The total number of children with BLLs ≥ 10 mcg/dL declined 63.9% between 1998 and 2005, from 10,155 children in 1998 to 3,666 children in 2005. The prevalence rate declined 65.1% over the same period, from 53.3 per 1,000 children tested in 1998 to 18.6 per 1,000 children tested in 2005.

Year of Test Number of Children with Prevalent Blood Lead Levels Prevalence Rate per 1,000 Children1
1998 10,155 53.3
1999 8,003 44.1
2000 6,198 33.3
2001 5,329 28.1
2002 4,884 26.0
2003 4,359 24.3
2004 4,112 20.7
2005 3,666 18.6

Footnotes

  1. Prevalence rate: Total number of children under age six years with confirmed BLLs ≥ 10 mcg/dL divided by the total number of children under age six tested in the given year, multiplied by 1,000. The highest blood lead level was retained in a given year.