From: Association between the spread of circulating tumor cells and breast cancer subtypes
 | Luminal subtype | HER2-positive subtype | Triple-negative subtype |  | |||
---|---|---|---|---|---|---|---|
pTNM stage | CTC-positive cases | Total cases | CTC-positive cases | Total cases | CTC-positive cases | Total cases | P a |
I | 2 | 23 | 1 | 6 | 4 | 10 | 0.0207b |
II | 7 | 38 | 5 | 10 | 8 | 18 | 0.0478 |
III | 8 | 28 | 6 | 9 | 9 | 14 | 0.0324 |