Table 2. Cox regression analysis for OS.

Variable	Univariate analysis			Multivariate analysis
	HR	95% CI	p	HR	95% CI	p
pTNM stage
T3–4 vs. T1–2	6.644	2.813–15.695	<0.001***	2.042	0.774–5.388	0.149
Lymph-node status
N1 vs. N0	23.486	6.286–87.755	<0.001***	4.900	1.181–20.324	0.029*
Fuhrman grade
G3–4 vs. G1–2	4.911	2.264–10.650	<0.001***	1.486	0.643–3.434	0.354
ARPC1B expression
High vs. low	59.588	8.086–439.121	<0.001***	43.992	5.785–334.511	<0.001***

Note. *p < 0.05; ***p < 0.001; ARPC1B, actin-related protein 2/3 complex subunit 1B; HR, hazard ratio; CI, confidence interval.