Table 1 Tumour characteristics of the breast cancer specimens

 Ductal

442 (85.0)

51 (86.4)

56 (78.9)

–

–

–

–

 Lobular

41 (7.9)

3 (5.1)

5 (7.0)

–

–

–

–

 Mixed and others

36 (6.9)

5 (8.5)

9 (12.7)

–

–

–

–

 ≤2.0 cm

133 (25.6)

20 (33.9)

39 (54.9)

126 (50.6)

112 (56.0)

–

–

 >2.0 cm

364 (70.0)

38 (64.4)

32 (45.1)

123 (49.4)

88 (44.0)

–

–

 Negative

253 (48.7)

25 (42.4)

34 (47.9)

159 (63.9)

200 (100)

175 (58.7)

286 (100)

 Positive

256 (49.2)

34 (57.6)

36 (50.7)

81 (32.5)

0 (0)

112 (37.6)

0 (0)

 Negative

491 (94.4)

57 (96.6)

–

–

–

–

–

 Positive

15 (2.9)

1 (1.7)

–

–

–

–

–

 I

89 (17.1)

13 (22.0)

–

–

–

–

–

 II

290 (55.8)

34 (57.6)

–

–

–

–

–

 III

110 (21.2)

11 (18.6)

–

–

–

–

–

 IV

14 (2.7)

1 (1.7)

–

–

–

–

–

 Grade 1

–

–

7 (9.9)

68 (27.3)

29 (14.5)

–

–

 Grade 2

–

–

25 (35.2)

126 (50.6)

136 (68.0)

–

–

 Grade 3

–

–

36 (50.7)

55 (22.1)

35 (17.5)

–

–

 Negative

117 (22.5)

9 (15.3)

18 (25.4)

34 (13.7)

–

0 (0)

77 (26.9)

 Positive

396 (76.2)

48 (81.4)

52 (73.2)

211 (84.7)

–

298 (100)

209 (73.1)

 Negative

176 (33.8)

16 (27.1)

22 (31.0)

–

–

–

–

 Positive

336 (64.6)

41 (69.5)

48 (67.6)

–

–

–

–

 Negative

361 (69.4)

48 (81.4)

60 (84.5)

–

–

–

–

 Positive

101 (19.4)

10 (16.9)

10 (14.1)

–

–

–

–

 True

72 (13.8)

7 (11.9)

11 (15.5)

–

–

–

–

 False

448 (86.2)

52 (89.1)

60 (84.5)

–

–

–

–

 Basal-like

96 (18.5)

11 (18.6)

–

–

–

–

–

 HER2-enriched

58 (11.2)

4 (6.8)

–

–

–

–

–

 Luminal A

231 (44.4)

32 (54.2)

–

–

–

–

–

 Luminal B

127 (24.4)

12 (20.3)

–

–

–

–

–

 Normal-like

8 (1.5)

0 (0)

–

–

–

–

–