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Table 2 Demographic and clinicopathologic characteristics for stages 1-3 first primary invasive breast cancer, 2000-2006.

From: Use of ER/PR/HER2 subtypes in conjunction with the 2007 St Gallen Consensus Statement for early breast cancer

  n %
Node Status   
   Node Negative 42,859 63.3%
   1-3 Nodes Positive 16,648 24.6%
   >3 Nodes Positive 8,191 12.1%
Stage   
   I 31,721 46.9%
   II 28,952 42.8%
   III 7,025 10.4%
Grade   
   Well differentiated; Grade I 14,813 21.9%
   Moderately differentiated; Grade II 28,406 42.0%
   Poorly differentiated; Grade III 23,191 34.3%
   Undifferentiated; anaplastic; Grade IV 1,288 1.9%
ER/PR/HER2 Status   
   +/+/+ 7,343 10.8%
   +/+/- 36,906 54.5%
   +/-/+ 2,258 3.3%
   +/-/- 6,305 9.3%
   -/+/+ 319 0.5%
   -/-/+ 4,805 7.1%
   -/+/- 652 1.0%
   -/-/- 9,110 13.5%
Tumor Size   
   ≤2 cm 42,043 62.1%
   > 2 cm 25,655 37.9%
Race/Ethnicity   
   Non-Hispanic White 47,016 69.4%
   Non-Hispanic Black 3,606 5.3%
   Hispanic 10,134 15.0%
   Asian/Pacific Islander 6,942 10.3%
Age   
   ≤45 11,755 17.4%
   46-69 40,058 59.2%
   ≥70 15,885 23.5%
Total 67,698