Map 2: Percent of Children Tested for Lead at or Around Age Two Years by County; 2004 Birth Cohort (2004 to 2007 Blood Lead Test Data)1, New York State Excluding New York City

Map 2 groups counties into clusters defined by county-level blood lead screening test rates at or around age two years (18 months to < 36 months) for children born in 2004. The statewide testing rate for this age group is 51.6 percent. The map graphically depicts the variation in lead testing rates among counties across the state. County clusters were established based on the natural break statistical method, which groups county-level blood lead testing rate values into categories that optimize both the similarity of values within each category and the differences in values between categories. Counties with the highest rates of testing at or around age two years are highlighted in the darkest shade, while those with the lowest rates are highlighted in the lightest shade.

Map 2: Percent of Children Tested for Lead at or Around Age Two Years by County; 2004 Birth Cohort (2004 to 2007 Blood Lead Test Data), New York State Excluding New York City

County Percent Tested at Two Years2
Albany 49.0
Allegany 27.5
Broome 31.7
Cattaraugus 37.0
Cayuga 55.4
Chautauqua 56.0
Chemung 45.4
Chenango 52.3
Clinton 48.3
Columbia 43.8
Cortland 80.1
Delaware 44.9
Dutchess 62.9
Erie 57.8
Essex 26.6
Franklin 12.5
Fulton 45.4
Genesee 43.0
Greene 59.5
Hamilton 21.1
Herkimer 52.1
Jefferson 52.5
Lewis 30.3
Livingston 40.2
Madison 54.3
Monroe 51.7
Montgomery 49.9
Nassau 58.6
Niagara 46.0
Oneida 48.3
Onondaga 73.7
Ontario 51.2
Orange 53.1
Orleans 32.8
Oswego 37.5
Otsego 51.5
Putnam 64.0
Rensselaer 48.1
Rockland 54.0
St. Lawrence 22.7
Saratoga 45.1
Schenectady 50.2
Schoharie 33.4
Schuyler 40.6
Seneca 31.2
Steuben 47.3
Suffolk 37.8
Sullivan 41.2
Tioga 29.0
Tompkins 46.1
Ulster 58.9
Warren 46.1
Washington 36.1
Wayne 40.2
Westchester 67.6
Wyoming 27.9
Yates 42.4
Statewide Rate 51.6

Footnotes

  1. At or Around age two years is defined as 18 months - < 36 months for surveillance purposes.
  2. Data ranges established based on the natural break method.