Table 1.

Demographic and clinical characteristics of cohort, (N = 246)

Characteristic	n	Median	Range
Sex, male	155	—	—
Age, y	246	57.2	30-74.9
β2-microglobulin level, μg/mL	242	2.28	1.0-15.2
PCLI, %	246	0.3	0.0-11.2
BMPC, %	246	13.0	0.13-82.0
LDH level, U/L	246	172.5	73.0-1331

— indicates not applicable; PCLI, bone marrow plasma-cell labeling index; BMPC, percentage of bone marrow plasma cells; and LDH, lactate dehydrogenase.