. Author manuscript; available in PMC: 2021 Aug 1.

Published in final edited form as: Biol Blood Marrow Transplant. 2020 May 15;26(8):1402–1405. doi: 10.1016/j.bbmt.2020.04.024

Table 1.

Baseline Characteristics.

Variable	B2M >2.5 μg/ml (N=222)	B2M ≤ 2.5 μg/ml (N=288)
Age (years), median (IQR)^*	61 (54–66)	57 (51.4–63.4)
Male, n (%)	118 (53%)	164 (57%)
Mayo 2012 stage (III/IV), n (%)^*	60/183^** (33%)	17/204^** (8%)
Organs involved >2, n (%)^*	56 (25%)	41 (14%)
Cardiac involvement, n (%)^*	113 (51%)	111(39%)
NT-proBNP (pg/ml), median (IQR)^*^#	692.5 (228–2641)	194.5 (85–877)
Troponin (μg/L), median (IQR)^*^#	0.01 (0.01–0.03)	0.01 (0.01–0.01)
dFLC (mg/dl), median (IQR)^*	22 (8.8–52)	9 (4–30)
Kidney involvement, n (%)	133 (60%)	161 (56%)
Liver involved, n (%)	26 (12%)	29 (10%)
FISH: t(11;14), n (%)	56/164^** (34%)	71/191^** (37%)
BMPC ≥ 10%, n (%)^*	125 (56%)	114 (40%)

Difference was statistically significant.

^**

Data was not available in all patients. Percentage is from all patients where the test could be done.

Normal range for NT-proBNP (5–50 pg/ml), normal range for Troponin (≤15 μg/L)

Abbreviations: B2M: beta-2 microglobulin, IQR: interquartile range, NT-ProBNP: N-terminal pro brain natriuretic peptide, dFLC: difference in free light chain FISH: Fluorescence in situ hybridization, BMPC: bone marrow plasma cells.