Table 1.

Patient Characteristics

Characteristic	No. of Patients (N = 108)	%
Age, years
Median	63
Range	36-83
Male	73	68
Rai stage
0	53	49
I	34	31
II	13	12
III	2	2
IV	6	6
Zap70 ≥ 20%	63	58
IgVH unmutated*	41	46
CD38 ≥ 30%	33	30
FISH
del 13q14.2	41	38
Normal	30	28
Trisomy 12	18	17
del 11q22.3	7	6
del 17p13.1	6	6
Other	3	3

Abbreviations: FISH, fluorescence in situ hybridization; IgV_H, immunoglobulin heavy chain.

^*IgV_H gene mutation status was attempted for all patients but classifiable for 89 patients.