Table I.
Immunologic results at baseline and at MRD time points, including MALDI-TOFF result and Flow cytometry analysis
| N=71 | |||
|---|---|---|---|
| Baseline | |||
| SPEP | + | 63 | |
| − | 6 | ||
| missing | 2 | ||
| IFE | + | 68 | |
| − | 1 | ||
| missing | 2 | ||
| Free κ/λ ratio | abnormal | 60 | |
| normal | 4 | ||
| missing | 7 | ||
| MRD time points | |||
| Median time (month) between MRD and Diagnosis (range) | 13.4 (3.4–91) | ||
| SPEP | + | 7 | |
| − | 64 | ||
| IFE | + | 17 | |
| − | 54 | ||
| Free K/Λ ratio | abnormal | 24 | |
| normal | 47 | ||
| MALDI-TOF-MS | + | 25 | |
| − | 46 | ||
| Flow cytometry | + | 18 | |
| − | 53 |
SPEP: serum protein electrophoresis, IFE: immunofixation electrophoresis, MRD: measurable residual disease