Comparison of patient characteristics according to baseline SFLC levels
| Factor . | SFLC of 75 mg/dL or less (%) . | SFLC higher than 75 mg/dL (%) . | P . |
|---|---|---|---|
| IgG isotype | 135/200 (68) | 37/97 (38) | < .001 |
| Light chain only | 15/200 (8) | 34/97 (35) | < .001 |
| B2M of 3.5 mg/L or higher | 68/201 (34) | 65/99 (66) | < .001 |
| BMPC higher than 30% | 93/174 (53) | 66/91 (73) | .003 |
| Creatinine of 2.0 mg/dL or higher | 2/201 (1) | 20/100 (20) | < .001 |
| LDH of 190 U/L or higher | 39/201 (19) | 41/100 (41) | < .001 |
| ISS stage 1 | 113/201 (56) | 27/99 (27) | < .001* |
| ISS stage 2 | 68/201 (34) | 29/99 (29) | < .001* |
| ISS stage 3 | 20/201 (10) | 43/99 (43) | < .001* |
| CAs | 58/200 (29) | 40/100 (40) | .055 |
| Factor . | SFLC of 75 mg/dL or less (%) . | SFLC higher than 75 mg/dL (%) . | P . |
|---|---|---|---|
| IgG isotype | 135/200 (68) | 37/97 (38) | < .001 |
| Light chain only | 15/200 (8) | 34/97 (35) | < .001 |
| B2M of 3.5 mg/L or higher | 68/201 (34) | 65/99 (66) | < .001 |
| BMPC higher than 30% | 93/174 (53) | 66/91 (73) | .003 |
| Creatinine of 2.0 mg/dL or higher | 2/201 (1) | 20/100 (20) | < .001 |
| LDH of 190 U/L or higher | 39/201 (19) | 41/100 (41) | < .001 |
| ISS stage 1 | 113/201 (56) | 27/99 (27) | < .001* |
| ISS stage 2 | 68/201 (34) | 29/99 (29) | < .001* |
| ISS stage 3 | 20/201 (10) | 43/99 (43) | < .001* |
| CAs | 58/200 (29) | 40/100 (40) | .055 |
n/N (%): n indicates number with factor; N, number with valid data for factor.
Chi-square P for trend.