Table 2. Corresponding risk score for each variable and total score.

Variables	Category	Score
Recurrence	Recurrence	0
	Recurrence free	60
Stage	I	0
	II	50
	III	70
	IV	100
Tumor status	Tumor free	0
	With tumor	35
Risk signature	Low	0
	High	75
Total score	Low risk	0–50
	Moderate risk	60–125
	High risk	≥130