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