Table 1.

Predicted versus actual 1-year recurrence and progression rates

Recurrence group	EORTC's recurrence prediction (score)	No. of patients	Observed 1-year recurrence proportion no. (%)	Progression group	EORTC's progression prediction (score)	No. of patients	Observed 1-year progression proportion no. (%)
Low	15% risk (0)	29	4 (13.7%)	Low	0.2% risk (0)	37	1 (2.7%)
Intermediate	24% risk (1-4)	40	12 (30%)	Intermediate	1% risk (2-6)	35	5 (14.3%)
Intermediate	38% risk (5-9)	20	6 (30%)	Intermediate	5% risk (7-13)	16	4 (25%)
High	61% risk (10-17)	2	1 (50%)	High	17% risk (14-23)	3	1 (33.3%)
Total	91			Total	91