Table 6.

Multivariate Cox regression analyses of hazard ratio for ACC recurrence and death

Variable	Recurrence			Death
	HR	95% CI	p	HR	95% CI	p
Necrosis	12.2	[1.6–95.0]	0.017	7.8	[1.0–63.5]	0.050
Venous invasion	0.6	[0.6–2.16]	0.588	1.0	[0.4–2.5]	0.974
Age	1.0	[1.0–1.1]	0.011	1.0	[1.0–1.1]	0.014
Tumor size	1.0	[1.0–1.1]	0.149	1.0	[0.9–1.1]	0.615
Total Weiss score	1.1	[0.8–1.4]	0.549	1.1	[0.8–1.5]	0.551

	Recurrence			Death
	HR	95% CI	p	HR	95% CI	p
Component 1	1.8	[1.1–3.0]	0.016	2.1	[1.1–4.1]	0.022
Age	1.1	[1.0–1.1]	0.004	1.0	[1.0–1.1]	0.003
Tumor size	1.1	[1.0–1.1]	0.010	1.0	[1.0–1.1]	0.507
Total Weiss score	1.3	[1.0–1.7]	0.014	1.3	[1.0–1.7]	0.050

Hazard ratio (HR) and 95% confidence intervals (CI) are indicated for multivariate analysis; p values are indicated (significant in italics)