CLL-stage C immune (6 patients) CLL-stage C infiltrative ( 25 patients)   p
Median age ( years) 68 73 NS
Male (%) 66 70 NS
Hb×109/L 10.4 10 NS
WBC ×109/L 34.2 45.1 NS
absolute Ly count×109/L 18.6 25.4 NS
Platelet count × 109/L 86 91 NS
Bone marrow infiltration  % 49 84  0.05
β2microglobuline >2.5mg/L% 50 70  0.01
FORD values (mmol/L) 0.39-0.84 0.41-0.96 NS
FORT values (mmol/L) 2.7-3.8 2.5 - 3.4 NS
Overall survival, years 5.7 2.8 0.01
Table 2: Characteristics of patients with CLL-stage C immune disease versus CLLstage C infiltrative disease.