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Table 2 Prevalence of circulating tumor cells.

From: Circulating tumor cells, disease recurrence and survival in newly diagnosed breast cancer

  Stage I-III Stage I Stage II Stage III DCIS Benign
  n= 404 n= 178 n= 175 n= 51 n= 48 n= 97
CTC n % n % n % n % n % n %
0 328 81.2 150 84.3 143 81.7 35 68.6 39 81.3 82 84.5
>1 76 18.8 28 15.7 32 18.2 16 31.3 9 18.7 15 15.4
1 48 11.9 20 11.2 22 12.6 6 11.8 3 6.3 12 12.4
2 5 1.2 1 0.6 3 0.6 1 2.0 2 4.2 1 1.0
3 6 1.5 2 1.1 1 0.6 3 5.9 0 0 0 0
4 5 1.2 1 0.6 1 0.6 3 5.9 1 2.1 0 0
>4 12 3.0 4 2.2 5 2.9 3 5.9 3 6.3 2 2.1
  1. CTC, circulating tumor cells; DCIS, ductal carcinoma in situ.