TABLE 2

Univariate Analysis of Recurrence-Free and Overall Survival

	Recurrence-free survival			Overall survival
Variable	Hazard ratio	95% CI	P	Hazard ratio	95% CI	P
Age	1.12	0.48–2.61	0.797	1.09	0.37–3.19	0.877
HG			0.480			0.555
I	Reference			Reference
II	0.97	0.26–3.67	0.968	0.51	0.11–2.29	0.381
II	1.72	0.46–6.50	0.422	0.99	0.24–4.16	0.993
RCB index			0.058			0.120
RCB-0	Reference			Reference
RCB-1	0.00	0.00	0.982	0.00	0.00	0.987
RCB-2	1.47	0.40–5.34	0.560	2.44	0.29–20.28	0.410
RCB-3	4.04	1.12–14.50	0.033	6.96	0.87–55.72	0.067
Clinical T stage			0.113			0.045
I	Reference			Reference
II	1.71	0.39–7.46	0.478	2.14	0.27–16.90	0.472
III	3.45	0.63–18.90	0.153	4.23	0.38–47.28	0.242
IV	5.97	1.00–35.87	0.051	11.97	1.23–116.06	0.032
Clinical N stage			<0.001			0.005
0 or I	Reference			Reference
II	1.93	0.51–7.27	0.333	5.02	1.01–24.91	0.049
III	5.97	2.46–14.46	<0.001	8.80	2.38–32.55	0.001
Subtype			0.003			0.038
Luminal A	Reference			Reference
Luminal B	1.03	0.23–4.61	0.967	1.48	0.21–10.58	0.695
HER2	1.11	0.30–4.12	0.882	1.39	0.24–8.35	0.716
Triple-negative	4.95	1.59–15.44	0.006	5.72	1.21–26.99	0.028
ΔSUV_max^*	0.97	0.95–0.98	<0.001	0.98	0.96–0.99	0.014

↵* Continuous variable.
CI = confidence interval.