Table 1 The main characteristics distinguishing between the luminal-A subgroups, LumA-R1 and LumA-R2

Recurrence-free survival

Increased recurrence

Reduced recurrence

7.6e-3

Histological type

Ductal (p = 2.1e-05)

Lobular (p = 9.7e-12)

Age, years, average

61.5

57.4

2.6e-05

Proliferation score

-0.4

-0.6

8.9e-25

Tumor nuclei percent

80 %

73 %

2.6e-12

Normal cell percent

2.9 %

6.1 %

2.8e-08

Gene overexpression

194

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