Table 4.

Multivariate Cox regression analysis evaluating the score-based prognostic groups and clinicopathological factor

Prognostic factors	Hazard ratio (95% CI)	P value
Prognostic groups by score
Indolent (score: 0–1)	1 (reference)
Intermediate (score: 2)	7.23 (1.75–29.79)	0.00611
Aggressive (score: 3–4)	28.49 (5.77–140.61)	< 0.0001
Age	1.00 (0.96–1.05)	0.972
Tumor type
Functional	1 (reference)
Nonfunctional	0.762 (0.16–3.71)	0.735
Tumor location
Distal/body	1 (reference)
Head	0.60 (0.19–1.94)	0.394
T-stage
T1	1 (reference)
T2	1.55 (0.23–10.35)	0.65
T3	2.17 (0.24–20.04)	0.49
Lymphovascular invasion
Absent	1 (reference)
Present	2.35 (0.88–6.27)	0.0879
Perineural Invasion
Absent	1 (reference)
Present	0.87 (0.24–3.10)	0.826
MEN1
Absent	1 (reference)
Present	4.46 (0.33–60.13)	0.260

Italic – p-value < 0.05