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Table 4 Correlation between the three risk groups and status of (lympho-) vascular invasion

From: Immunostaining with D2–40 improves evaluation of lymphovascular invasion, but may not predict sentinel lymph node status in early breast cancer

Risk groupsa Vascular invasion assessed by H&E Lymph vascular invasion assessed by immunostaining with D2–40
  Negative Positive Negative Positive
Low 24 1 15 9
Intermediate 49 5 41 15
High 13 0 9 3
Total 86 6 65 27
p values* 0.040 0.221
  1. * Fisher's exact test; a: according to Goldhirsh et al, 2005 [ref. # [16]]