Table 1.

Baseline characteristics

Characteristic	N=59
Age, median (range)	68 (48–83)
Gender (%)
-Male	34 (58)
-Female	25 (42)
Race (%)
-White	53 (90)
-Black	5 (8)
-Others	1 (2)
AL type (%)
-Kappa	13 (22)
-Lambda	46 (78)
2004 stage (%)
I	14 (24)
II	17 (29)
III	26 (44)
Missing*	2 (3)
2012 stage (%)
1	9 (14)
2	18 (28)
3	20 (36)
4	10 (16)
Missing*	2 (6)
Median (range) dFLC, mg/L	82 (2–978)
Median (range) NT proBNP, pg/mL	2,643 (24–50,863)
Median (range) troponin T, ng/mL	0.05 (<0.01–206)
Cardiac AL (%)	39 (66)
Renal AL (%)	34 (58)
Number of AL organs involved
1	21 (36%)
2	23 (39%)
3/>	15 (25%)

^*3 patients had missing biomarkers prior to starting therapy

dFLC- difference between involved and uninvolved free light chain