Table 2 Comparisons of total length of copy number aberrations (CNA) by clinicopathological factor of breast cancers.

Histological subtype

Papillo-tubular

13 (46)

27,487,678

0.54¹⁾

Solid-tubular

3 (11)

41,158,092

Scirrhous

12 (43)

61,520,542

Histological grade

I

4 (14)

49,011,523

0.32²⁾

II

12 (43)

47,158,730

III

12 (43)

32,711,871

Axillary lymph node metastasis

Positive

13 (62)

30,993,870

0.30³⁾

Negative

8 (38)

59,602,019

ER status

Positive

14 (50)

53,249,555

0.43³⁾

Negative

14 (50)

30,863,969

HER2 amplification (FISH)

Positive

9 (36)

28,970,829

0.75³⁾

Negative

16 (64)

37,017,451

C-MYC amplification (FISH)

Positive

11 (48)

38,698,059

0.46³⁾

Negative

12 (52)

22,102,472