Table 2.
Demographic, clinical, and laboratory characteristics of patients with solitary plasmacytoma of bone for whom an FLC ratio was available at the time of diagnosis (N = 116)
|
FLC ratio
|
|||
|---|---|---|---|
| Characteristic | Abnormal | Normal | P |
| Sex, no. (%) | .63 | ||
| Male | 37 (68.5) | 45 (72.6) | |
| Female | 17 (31.5) | 17 (27.4) | |
| Age at diagnosis, y | .74 | ||
| Median | 61.5 | 59.5 | |
| Range | 26.0-93.0 | 30.0-86.0 | |
| Fracture, no. (%) | .96 | ||
| Yes | 11 (20.5) | 12 (20.0) | |
| No | 43 (79.6) | 48 (80.0) | |
| Hemoglobin, g/L | .53 | ||
| Median | 133 | 138 | |
| Range | (95-170) | (87-170) | |
| Serum monoclonal protein, no. (%) | .32 | ||
| Positive | 37 (68.5) | 37 (59.7) | |
| Negative | 17 (31.5) | 25 (40.3) | |
| Serum M spike, g/dL | .04 | ||
| Median | 1.0 | 0.3 | |
| Range | 0.0-3.0 | 0.0-2.6 | |
| Urine monoclonal protein, no. (%) | < .001 | ||
| Positive | 31 (60.8) | 11 (20.4) | |
| Negative | 20 (39.2) | 43 (79.6) | |
| Urine M spike, g/24 h | .58 | ||
| Median | 0.0 | 0.0 | |
| Range | 0.0-0.2 | 0.0-0.2 | |
| Reduction in uninvolved Igs, no. (%) | .19 | ||
| 0 | 15 (51.7) | 21 (72.4) | |
| 1 | 10 (34.5) | 7 (24.1) | |
| 2 | 1 (3.4) | 4 (13.8) | |