Table 1.

Relationship of the presence or absence of CD19⁺ cells coexpressing CD10 and/or CD34 on day 19 with presenting clinicobiologic features of children with ALL

		CD19+ cells coexpressing CD10 and/or CD34 on day 19
Presenting feature	Patients studied	Absent	Present	P*
Age, y	.962
Younger than 1	6	3	3
1 to 9	288	128	160
10 or older	86	38	48
Race	.916
White	301	135	166
Black	48	20	28
Other	31	14	17
Sex	.164
Male	204	84	120
Female	176	85	91
WBC, × 109/L	.246
Less than 50	300	138	162
50 or more	80	31	49
BCR-ABL†	.001
Absent	366	169	197
Present	13	0	13
TEL-AML 1†	< .001
Absent	273	110	163
Present	83	51	32
MLL-AF4†	.834
Absent	373	167	206
Present	4	2	2
DNA index	.083
1.16 or more	111	57	54
Other	269	112	157
NCI risk	.791
Standard	227	102	125
High	147	64	83
Not applicable	6	3	3

^*Calculated by Pearson chi-square test.

^†Data not available for all patients.