1219 / 1631
0
0.25
0.5
0.75
1
0
12
24
36
48
60
72
84
96
108
Probability
Time (months)
Overall survival
(78 months median follow-up)
months events
(median) (n)
Observation nyr
10
R maint.
nyr
6
Pts at risk
Observ.
51
50
49
46
43
38
29
15
3
R maint.
53
52
49
48
46
44
38
24
5
Hazard ratio, 0.53 (95% CI 0.20 – 1.43)
p = 0.2143