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Characteristics of the analyzed group.
| MM | MGUS | |
|---|---|---|
| N | 156 | 78 |
| Age median (years) | 65 (range 32–86) | 62 (range 31–86) |
| M/F ratio | 1,08 : 1 | 0,56 : 1 |
| MIg type | ||
| IgG | 98 (63%) | 60 (77%) |
| IgA | 43 (27%) | 14 (18%) |
| Bence-Jones | 14 (9%) | 3 (4%) |
| IgD | 1 (1%) | — |
| Biclonal | — | 1 |
| κ/λ ratio | 2,55 | 1,7 |
|
| ||
| MM stage | ||
| ISS 1 | 98 (63%) | — |
| ISS 2 | 39 (25%) | — |
| ISS 3 | 19 (12%) | — |
| DS I | 15 (10%) | — |
| DS II | 71 (46%) | — |
| DS III | 70 (44%) | — |
| Substage A | 149 (96%) | — |
| Substage B | 7 (4%) | — |
