Gastrointestinal stromal tumors of the duodenum: Surgical management and survival results

Table 4 Results of survival analysis

	n	Median RFS (mo)	95%CI of HR	Median DRS (mo)	95%CI of HR	Median Gold’s point (range)	Predicted 2-year RFS probability	Actual 2-year RFS rate	Predicted 5-year RFS probability	Actual 5-year RFS rate
Total	25	60.5	-	73	-	73 (50-190)	83%	83.30%	70%	50%
Fletcher’s risk
Very low/low	9	103ce	1.564-158.6	Undefined	0.6931-149.1	64 (50-70)df	86%	100%	75%	100%
Intermediate	5	53	0.7675-7.845	Undefined	0.9385-10.78	71 (71-81)bf	84%	100%	70%	40%
High	11	29bd	4.812-68.51	40bd	3.449-44.94	173 (155-190)bd	< 10%	70%	< 10%	< 10%
Miettinen's risk
Low	9	103f	2.882-26.67	Undefined	2.224-21.94	64 (50-70)f	86%	100%	75%	100%
High	16	47b	-	56	-	160 (71-190)b	< 10%	80%	< 10%	20%

^aP < 0.05,

^bP < 0.01 vs Very low/Low;

^cP < 0.05,

^dP < 0.01 vs Intermediate;

^eP < 0.05,

^fP < 0.01 vs High; DRS: Disease-related survival; RFS: Relapse-free survival.