Table 3.

Multivariable Cox proportional hazards regression.

	adjusted HR (95% CI)	p value
Model A
Subtype
Luminal A	Reference
Luminal B	1.46 (0.54–3.95)	0.462
Her2 +	0.87 (0.19–4.01)	0.856
TNC	1.57 (0.47–5.22)	0.46
pTNM
0	0.51 (0.03–9.79)	0.652
I	1.23 (0.46–3.28)	0.673
II	Reference
III	3.63 (1.53–8.58)	0.003
IV	7.89 (1.79–34.68)	0.006
Model B
Subtype
Luminal A	Reference
Luminal B	1.40 (0.51–3.83)	0.518
Her2 +	0.57 (0.12–2.71)	0.476
TNC	1.43 (0.42–4.85)	0.566
pTNM
0	1.96 (0.10–38.63)	0.658
I	1.56 (0.08–30.19)	0.768
II	Reference
III	5.46 (0.29–104.18)	0.259
IV	9.28 (0.37–231.50)	0.175
Rim enhancement
No	Reference
Yes	1.58 (0.74–3.38)	0.234
Ipsilateral vascularity
<3	Reference
≥3	2.67 (1.28–5.60)	0.009
Model C
Subtype
Luminal A	Reference
Luminal B	1.84(0.66–5.15)	0.246
Her2 +	0.81(0.17–3.80)	0.787
TNC	2.56(0.73–8.98)	0.141
pTNM
0	0.58(0.03–11.53)	0.723
I	1.45(0.53–3.96)	0.470
II	Reference
III	3.59(1.44–9.00)	0.006
IV	3.86(0.79–18.85)	0.095
Texture analysis: Skewness
<0.29	Reference
≥0.29	2.85(1.17–6.94)	0.021
Kep: 25perc
<0.20	Reference
≥0.20	3.84(1.16–12.72)	0.028
Model D
Subtype
Luminal A	Reference
Luminal B	1.71 (0.60–4.88)	0.317
Her2 +	0.53 (0.11–2.61)	0.437
TNC	1.96 (0.54–7.06)	0.306
pTNM
0	0.85 (0.04–16.96)	0.913
I	1.46 (0.53–4.05)	0.465
II	Reference
III	3.45 (1.37–8.67)	0.008
IV	3.27 (0.67–16.00)	0.144
Rim enhancement
No	Reference
Yes	2.09 (0.92–4.76)	0.08
Ipsilateral vascularity
<3	Reference
≥3	2.71 (1.25–5.86)	0.011
Texture analysis: Skewness
<0.29	Reference
≥0.29	3.21 (1.26–8.23)	0.015
Kep: 25perc
<0.20	Reference
≥0.20	2.66 (0.82–8.67)	0.105