Table 1.

Overall survival subgroup results reported by GCLLSG CLL8

Grouped by	Subgroup	Experimental arm (N)	Control arm (N)	Hazard ratio (95% CI)
Age
	< 65 years	282	290	0·68 (0.46 to 1.02)
	≥ 65 years	126	119	0.63 (0.37 to 1.10)
Stage
	Binet A	18	22	0.19 (0.02 to 1.61)
	Binet B	263	259	0.45 (0.30 to 0.69)
	Binet C	126	126	1.48 (0.84 to 2.62)
Prognostic factors
	del17p	22	29	0.66 (0.32 to 1.36)
	del11q	84	69	0.42 (0.18 to 0.97)
	trisomy 12	30	44	0.23 (0.03 to 1.94)
	del13q	168	182	0.30 (0.13 to 0.71)
	no abnormalities	not reported	not reported	1.56 (0.67 to 3.64)