Table 2.

Association of baseline bone marrow plasmacytosis (BMPC) and M-protein with mean platelet parameters

	50% or greater BMPC	Less than 50% BMPC	M-protein concentration greater than 31 g/L	M-protein concentration less than 31 g/L
Baseline platelet count, ×109/L	135.57	198.92*	139.94	188.45*
Platelet nadir, ×109/L	48.2	80.34*	54.92	70.47‡
Platelet change, ×109/L	-87.37	-119.88*	-85.82	-117.98§
Platelet change, %	63.7	58.3†	59.1	63.3∥
Baseline BMPC, %	—	—	66.32	38.61*
Baseline M-protein concentration	39.78	23.96*	—	—

— indicates not applicable.

^*P < .001.

^†P = .06.

^‡P = .03.

^§P = .001.

^∥P = .18