Table 2.

Progression-Free Survival and Overall Survival

Randomized arm	55.8 Gy(RBE)	63.0 Gy(RBE)	p-value
Progression-Free Survival (95% CI)
Entire Cohort			0.234
5 years	91% (68–98%)	91% (68–98%)
10 years	86% (62–95%)	81% (58–93%)
15 years	52% (28–72%)	70% (45–86%)
Median (years)	15.6 (12.3–18.0)	NR
Subtotal Resection			0.820
5 years	100%*	83% (48–96%)
10 years	91% (51–99%)	67% (34–86%)
15 years	64% (30–85%)	57% (25–80%)
Median (years)	16.3 (12.3–18.9)	16.3 (4.9-NR)
Recurrent			0.061
5 years	82% (45–95%)	100%*
10 years	82% (45–95%)	100%*
15 years	39% (7–71%)	87% (39–98%)
Median (years)	13.5 (2.6-NR)	NR
Overall Survival (95% CI)
Entire cohort			0.271
5 years	91% (68–98%)	91% (68–98%)
10 years	86% (62–95%)	81% (58–93%)
15 years	62% (35–80%)	75% (50–89%)
Median (years)	16.3 (13.5–18.9)	NR
Subtotal Resection			0.975
5 years	100%*	83% (48–96%)
10 years	91% (51–99%)	67% (34–86%)
15 years	64% (30–85%)	57% (25–80%)
Median (years)	16.3 (12.3–18.9)	16.3 (4.9-NR)
Recurrent			0.150
5 years	82% (45–95%)	100%*
10 years	82% (45–95%)	100%*
15 years	65% (24–88%)	100%*
Median (years)	19.8 (2.6–19.8)	NR

95% CI: 95% confidence interval; NR: not reached;

^*No failure events were observed