Table 1.

Baseline Characteristics for All Patients Enrolled Onto Study

Characteristic	No.	%
Age, years
Median	66
Range	48-86
No prior therapy	23	100
Bone marrow involvement
Median	55
Range	5-90
Adenopathy and/or splenomegaly	4	17
IgM, mg/dL
Median	4,830
Range	458-9,950
IgM ≥ 3,000 mg/dL	13	57
Hematocrit, %
Median	28.9
Range	19.5-37
Hematocrit ≤ 30%	13	57
Platelets ≤ 100,000/μL	2	9
β2-microglobulin, mg/L
Median	3.3
Range	1.0-7.1

Abbreviation: IgM, immunoglobulin M.