Table 2 Univariate and multivariate cox proportional hazard model for disease free survival (DFS) and overall survival (OS) for TNBC patients

Age (years)

 ≤ 50

Reference

Reference

 > 50

0.96 (0.57–1.61)

0.865

1.28 (0.67–2.45)

0.464

Tumor size

 ≤ 2 cm

Reference

Reference

 > 2 cm

1.46 (0.83–2.56)

0.185

1.43 (0.72–2.84)

0.311

Lymph nodes metastasis

 No

Reference

Reference

Reference

Reference

 Yes

1.98 (1.16–3.36)

0.026

2.16 (1.12–4.17)

0.022

1.75 (1.02–3.01)

0.042

1.86 (0.95–3.62)

0.069

Grade

 I + II

Reference

Reference

 III

1.38 (0.78–2.44)

0.164

1.61 (0.78–3.33)

0.198

Lymphovascular invasion

 No

Reference

Reference

 Yes

1.52 (0.90–2.56)

0.121

1.50 (0.78–2.86)

0.223

DCUN1D5 expression

 Low

Reference

Reference

Reference

Reference

 High

2.09 (1.22–3.59)

0.008

2.55 (1.28–5.08)

0.008

1.87 (1.08–3.25)

0.026

2.27 (1.13–4.57)

0.022