Table 1.

Neutropenia and FcγR Polymorphisms in 33 Patients Receiving One or Two Courses of Rituximab

Parameter	FcγR IIIa Polymorphism			FcγR IIa Polymorphism			All Patients (N = 33)
	V/V (n = 4)	V/F (n = 14)	F/F (n = 15)	H/H (n = 8)	H/R (n = 16)	R/R (n = 9)
Patients developing neutropenia*
No.	3	8	6	3	9	5	17
%	75	57	40	38	56	56	52
	V/V (n = 7)	V/F (n = 23)	F/F (n = 27)	H/H (n = 15)	H/R (n = 27)	R/R (n = 15)	All Courses (N = 57)
Courses with neutropenia
No.	5	10	6	5	11	5	21
%	71	43	22	33	41	33	37

^*Grade 3 or 4 (absolute neutrophil count < 1,000/μL).