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Table 1 Clinicopathological features of the study population

From: Tumor burden monitoring using cell-free tumor DNA could be limited by tumor heterogeneity in advanced breast cancer and should be evaluated together with radiographic imaging

Clinicopathologic Characteristics

 

Age at diagnosis (years)

Median (range)

62 (30–80)

Histology (n (%))

Ductal

44 (90%)

Lobular

5 (10%)

Histologycal grade (n (%))

I and II

39 (80%)

III

10 (20%)

UICC stage (n (%))

IIB

6 (12%)

IIIA + IIIB

11 (22%)

IV

32 (65%)

ER status (n (%))

positive

49 (100%)

negative

0 (0%)

PR status(n (%))

positive

33 (67%)

negative

16 (33%)

HER2 status (n(%))

positive

8 (16%)

negative

41 (84%)

  1. Abbreviations: ER estrogen receptor, PR progesterone receptor, HER2 erb-b2 receptor tyrosine kinase 2, UICC Union for International Cancer Control