Table 1.

Characteristics of CCG 2891 de novo patients

	White			Black			Hispanic			Asian
	No.	%	P	No.	%	P	No.	%	P	No.	%	P
Total	558	70.5	NA	94	11.9	NA	114	14.4	NA	25	3.2	NA
Age, y	7.8	NA	.677	7.5	NA	.756	7.9	NA	.478	11.0	NA	.436
Male	282	50.5	.617	42	44.7	.348	70	61.4	.044	11	44.0	.663
WBC count	22.7	NA	.632	25.8	NA	.844	20.4	NA	.485	18.8	NA	.613
CNS disease	53	9.5	.207	5	5.3	.262	6	5.3	.203	4	16.0	.467
Induction timing
INT	351	62.9	.316	50	53.2	.094	71	62.3	.985	16	64.0	.920
STD	196	35.1	.191	44	46.8	.040	41	36.0	.949	9	36.0	.901
STD/INT	11	2.0	.365	0	0.0	.380	2	1.8	1.000	0	0.0	>.999
Cytogenetics
Normal	80	25.7	.902	11	20.8	.548	11	28.2	.889	3	60.0	.116
t(8;21)	35	11.3	.235	7	13.2	.858	8	20.5	.117	1	20.0	.456
Abn. 16	28	9.0	.317	4	7.5	>.999	1	2.6	.227	0	0.0	>.999
Abn. 11	64	20.6	.009	4	7.5	.022	4	10.3	.186	0	0.0	.587
t(6;9)	3	1.0	.341	1	1.9	.469	1	2.6	.378	0	0.0	>.999
−7/7q-	12	3.9	.394	3	5.7	.466	3	7.7	.227	0	0.0	>.999
−5/5q-	4	1.3	.364	2	3.8	.212	1	2.6	.448	0	0.0	>.999
Trisomy 8	21	6.8	.119	6	11.3	.255	5	12.8	.190	1	20.0	.305
Trisomy 21	7	2.3	.686	1	1.9	>.999	0	0.0	1.000	0	0.0	>.999
Other	57	18.3	.897	14	26.4	.236	5	12.8	.531	0	0.0	.590
No data	247	NA	NA	41	NA	NA	75	NA	NA	20	NA	NA

Median values reported for age and WBC count. For statistical analysis, white patients were compared with a combined ethnic group, and other ethnic groups were individually compared with white patients alone.

INT indicates intensive timing; STD, standard timing; STD/INT, combination intensive and standard timing; and NA, not applicable.