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Table 1 Characteristics of patients and their primary breast cancers

From: HER2gene status in primary breast cancers and matched distant metastases

Characteristic

n (percentage)

Age (years)

 

   Mean

57.5

   Range

26–85

Tumour size (cm)

 

   ≤ 2

28 (26.6)

   >2 ≤ 5

57 (54.3)

   >5

9 (8.6)

   Not available

11 (10.5)

Histological type

 

   Ductal

82 (78.1)

   Lobular

12 (11.4)

   Ductulo-lobular

10 (9.5)

   Medullary

1 (1)

Nuclear grade

 

   1

7 (6.7)

   2

41 (39)

   3

55 (52.4)

   Not available

2 (1.9)