Table 1. Baseline patient and disease characteristics at initial diagnosis in each group.

Characteristic	Group 1 [n=42]	Group 2 [n=30]
Median age [range] [years]	60 [41-79]	61 [42-82]
Sex
Male	27 (64.3%)	18 (60.0%)
Female	15 (35.7%)	12 (40.0%)
Myeloma type
IgG	18 (42.9%)	12 (40.0%)
IgA	9 (21.4%)	7 (23.3%)
IgD	3 (7.1%)	3 (10.0%)
λ-light	4 (9.5%)	2 (6.7%)
κ-light	8 (19.0%)	6 (20.0%)
Level of Scr (mg/dL), median (range)	1.2 (0.6-1.9)	3.9 (2.2-13.7)*

*Twelve patients in group 2 received hemodialysis at diagnosis