Table 1. Modified Rai stages or... | American Society of Hematology

Table 1.

Modified Rai stages or lymphadenopathy/splenomegaly or β₂-microglobulin and ZAP-70 percentages

	Rai stage			Lymphadenopathy/splenomegaly*
	Low	Int/high*	Present	Absent	Greater than 2.2 mg/mL	Less than 2.2 mg/mL
Total, no. (%)	87 (30)	202 (70)	101 (35)	188 (65)	121 (46)	144 (54)
ZAP-70, no. (%)†
Greater than 20%	12 (12)	92 (88)	66 (63)	38 (37)	56 (46)	31 (22)
Lower than 20%	75 (41)	110 (59)	35 (19)	150 (81)	65 (54)	113 (78)

	Rai stage			Lymphadenopathy/splenomegaly*
	Low	Int/high*	Present	Absent	Greater than 2.2 mg/mL	Less than 2.2 mg/mL
Total, no. (%)	87 (30)	202 (70)	101 (35)	188 (65)	121 (46)	144 (54)
ZAP-70, no. (%)†
Greater than 20%	12 (12)	92 (88)	66 (63)	38 (37)	56 (46)	31 (22)
Lower than 20%	75 (41)	110 (59)	35 (19)	150 (81)	65 (54)	113 (78)

For ZAP-70 greater than 20%, n = 104 (36%); for ZAP-70 lower than 20%, n = 185 (64%)

n indicates the number of samples.

As determined by the 2-tailed Fisher exact test.

P < .001