Table 2 Univariate and multivariate Cox regression analyses of clinicopathological factors for DFS among these breast cancer patients

Age

1.478 (0.693–3.152)

0.313

NA

T grade

NA

 1

0.644

 2

1.434 (0.670–3.069)

0.353

 3

1.492 (0.317–7.027)

0.613

N grade

 0

< 0.001

< 0.001

 1

3.392 (1.567–7.342)

0.002

3.241 (1.496–7.021)

0.003

 2

5.481 (2.302–13.048)

< 0.001

5.613 (2.352–13.395)

< 0.001

 3

8.928 (4.081–19.533)

< 0.001

6.899 (3.102–15.346)

< 0.001

Histological grade

NA

 1

0.821

 2

1.189 (0.285–4.957)

0.812

 3

1.415 (0.322–6.230)

0.646

Menopausal status

1.073 (0.609–1.890)

0.806

NA

G2E3 expression

2.954 (1.676–5.207)

< 0.001

2.395 (1.332–4.306)

0.004