Table 2. Frequency of GSTM1 and GSTT1... | American Society of Hematology

Table 2.

Frequency of GSTM1 and GSTT1 genotypes in patients with and without HVOD

	GSTM1 null, n (%)	GSTM1 positive, n (%)	GSTT1 null, n (%)	GSTT1 positive, n (%)
HVOD^-	23 (53.5)	58 (81.7)	28 (82)	53 (66.5)
HVOD⁺	20 (46.5)^*	13 (18.3)^*	6 (18)†	27 (33.5)†

	GSTM1 null, n (%)	GSTM1 positive, n (%)	GSTT1 null, n (%)	GSTT1 positive, n (%)
HVOD^-	23 (53.5)	58 (81.7)	28 (82)	53 (66.5)
HVOD⁺	20 (46.5)^*	13 (18.3)^*	6 (18)†	27 (33.5)†

Numbers in each group are as follows: GSTM1 null, n = 43; GSTM1 positive, n = 71; GSTT1 null, n = 34; and GSTT1 positive, n = 80.

P = .001 by chi-square test

P = .13 by chi-square test