Table 1 Patient’s clinical and biological characteristics
Variable | Symptomatic MM n = 67 | SMM n = 62 | MGUS n = 38 |
|---|---|---|---|
Mean age ± SD | 64.2 ± (9.9) | 66 ± (12.5) | 61.8 ± (10.6) |
Male | 25/67 (37%) | 24/62 (39%) | 17/38 (45%) |
R-ISS I | 26/67 (39%) | N/A | N/A |
R-ISS II | 23/67 (34%) | N/A | N/A |
R-ISS III | 18/67 (27%) | N/A | N/A |
Type of monoclonal Ig or free lights chains | |||
IgGκ | 18/67 (27%) | 23/62 (37%) | 14/38 (37%) |
IgGλ | 7/67 (10%) | 19/62 (31%) | 9/38 (24%) |
Κ | 12/67 (18%) | 4/62 (6%) | 2/38 (5%) |
IgAλ | 9/67 (13%) | 3/62 (5%) | 5/38 (13%) |
Λ | 8/67 (12%) | 3/62 (5%) | 4/38 (10.5%) |
IgAκ | 13/67 (20%) | 10/62 (16%) | 4/38 (10.5%) |
Mean serum monoclonal Ig (g/L) ± SD | 28.6 ± (19.5) | 23.2 ± (15) | 11.5 ± (8.6) |
Mean bone marrow plasma cells (%) ± SD | 28 ± (25) | 17 ± (15) | 4 ± (2.85) |