Table 3.

Univariate analysis—progression-free survival (PFS).

Variable	HR	95% CI	P value
Sex (male)	0.6	0.2-1.8	0.38
Age	1	0.94-1.1	0.92
Heavy chain (IgG)	1.7	0.53-5.64	0.35
Light chain (k)	0.79	0.26-2.4	0.68
Years from diagnosis	0.92	0.77-1.1	0.38
Prior therapy lines	1.07	0.88-1.32	0.47
M-protein	1.1	0.81-1.51	0.51
OR (yes)	0.11	0.03-0.46	<0.05
VGPR or better (yes)	0.01	0-143	0.35
GFR ≥40 ml/min (yes)	0.91	0.25-3.35	0.89

HR, hazard ratio; CI, confidential interval; IgG, immunoglobulin G; OR, overall response; VGPR, very good partial remission; GFR, glomerular filtration rate.

(N = 28).