Table 9.

VNPI

VNPI

VNPI = A + B + C + D

A = tumor size

1: ≤ 15 mm

2:16–40 mm

3: ≥ 41 mm

B = surgical margin condition

1: ≥ 10 mm

2:1–9 mm

3: <1 mm

C = nuclear grade

1: Low grade

2: Intermediate grade

3: Advanced grade

D = age

1: ≥ 60 years old

2 :40–59 years old

3: < 40 years old