Figure 10: Summary Trends in Incidence Rates Among Children Under Age Six Years by Blood Lead Level Category; 1998 to 2007 Blood Lead Test Data1, New York State Excluding New York City
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Figure 10 shows the incidence rate for each of the three BLL categories defined for the years 1998- 2007. Both the total number of children and the proportion of children tested for lead and newly identified with confirmed EBLLs steadily declined across all BLL categories during this time period. The total number of children newly identified with BLLs ≥ 10 mcg/dL declined 63.4 percent between 1998 and 2007, from 5,198 children in 1998 to 1,901 children in 2007. The incidence rate declined 68.3 percent over the same period, from 29.0 per 1,000 children tested in 1998 to 9.2 per 1,000 children tested in 2007.
|Year of Test||Incidence Rate 10-14 mcg/dL per 1,000 children tested||Incidence Rate 15-19 mcg/dL per 1,000 children tested||Incidence Rate ≥ 20 mcg/dL per 1,000 children tested|
- Incidence Rate: Total number of children under age six years identified for the first time with confirmed BLLs for each BLL category divided by the number of children under age six that had lead tests in that given year, multiplied by 1,000.