Table 3.

Nine classes of priority counties based on county-level changes in lymph node–positive breast cancer incidence rates, 1988 to 2005

ClassesRatio of 1988-2005 changes in county rate vs overall rate*Difference between county rate and overall rate in 2005No. of counties
Class 1: definite hotspots<−2.0>10/100,00035
Class 2: probable hotspots<−2.0±10/100,00016
Class 3: moderate priority<−2.0<−10/100,0006
Class 4: moderate priority±2.0>10/100,00013
Class 5: moderate priority>2.0>10/100,0005
Class 6: lower priority±2.0±10/100,00030
Class 7: lower priority±2.0<−10/100,00036
Class 8: lower priority>2.0±10/100,00018
Class 9: lowest priority>2.0<−10/100,00041
  • *Ratio, <−2.0: the county rate change from 1988 to 2005 was at least twice slower than the overall predicted change during this time period; ratio, >2.0: the county rate change from 1988 to 2005 was at least twice faster than the overall predicted change during this time period