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Table 1 Basic demographic data of all evaluable breast cancer cases (n = 990)

From: Expression of RET is associated with Oestrogen receptor expression but lacks prognostic significance in breast cancer

Mean tumour size (mm) ± SD

32 ± 18

Mean age at diagnosis (years) ± SD

64 ± 14

 

Number

Percentage

(n)

(%)

Tumour stage

 pT1

236

23.8

 pT2

541

54.6

 pT3

85

8.6

 pT4

127

12.8

 NA

1

0.2

Lymph node involvement

 pN0

508

51.3

 pN1

370

37.4

 pN2

98

9.9

 pN3

8

0.8

 NA

6

0.6

Tumour grade

 1

206

20.8

 2

354

35.8

 3

429

43.3

 NA

1

0.1

Histologic subtype

 Invasive ductal

739

74.6

 Invasive lobular

107

10.8

 Mucinous

25

2.5

 Apocrine

19

1.9

 Cribriform

32

3.2

 Others

65

6.6

 NA

3

0.4

Intrinsic subtype

 Luminal A-like (ER+and/or PR+, HER2−, Ki-67 < 14%)

124

12.5

 Luminal B-like (HER2-negative) (ER+and/or PR+, HER2−, Ki-67 ≥ 14%)

435

43.9

 Luminal B-like (HER2-positive) (ER+and/or PR+, HER2+)

90

9.1

 HER2 type (ER−, PR−, HER2+)

77

7.8

 Basal-like (ER−, PR−, HER2−)

260

26.3

 NA

4

0.4