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Table 4 Variation patterns of CTC phenotype in HR-positive and HR-negative groups

From: The prognostic and therapeutic implications of circulating tumor cell phenotype detection based on epithelial–mesenchymal transition markers in the first-line chemotherapy of HER2-negative metastatic breast cancer

Increased index

HR-positive

HR-negative

χ 2

P

Total CTC count

2

3

6.619

0.037

The proportion of EMT-CTCs

7

0

Both

10

2

  1. HR hormone receptor, CTC circulating tumor cell, EMT epithelial–mesenchymal transition