Table 1. Patients characteristics.

patient number	age	phenotype (months)	CNS Involvement	hyperleucytosis	Karyotype	FISH	Corticosensitivity	Chemosensitivity
1	154	LAL T	no	yes	abnormal	tel-aml1	yes	yes
2	82	LAL B	no	no	abnormal	negative	yes	yes
3	114	LAL B	no	no	abnormal	negative	yes	yes
4	52	LAL B	no	no	abnormal	negative	no	yes
5	35	LAL B	no	no	abnormal	negative	yes	yes
6	53	LAL B	no	no	abnormal	negative	not evaluable	yes
7	107	LAL B	no	no	abnormal	negative	yes	yes
8	45	LAL B	no	no	normal	negative	no	yes
9	190	LAL B	no	no	abnormal	tel-aml1	yes	yes
10	65	LAL B	no	no	normal	negative	not	yes
11	91	LAL B	no	no	abnormal	negative	ye	yes
12	196	LAL B	no	no	normal	tel-aml1	yes	yes
13	35	LAL B	no	no	abnormal	not done	no	yes
14	180	LAL T	no	no	Failure	negative	yes	yes
15	76	LAL B	no	no	normal	negative	yes	yes
16	61	LAL B	no	no	abnormal	negative	yes	yes
17	183	LAL B	no	no	abnormal	negative	yes	yes
18	91	LAL B	no	no	normal	negative	yes	yes
19	38	LAL B	no	yes	abnormal	negative	yes	yes
20	50	LAL B	no	yes	normal	negative	yes	yes
21	195	LAL B	no	no	normal	tel-aml1	yes	yes
22	78	LAL B	no	no	abnormal	negative	not evaluable	yes
23	23	LAL B	no	no	abnormal	tel-aml1	not evaluable	yes
24	72	LAL B	yes	no	normal	negative	yes	yes
25	39	LAL B	no	no	normal	negative	not evaluable	yes
26	35	LAL B	no	no	abnormal	tel-aml1	no	yes
27	57	LAL B	no	no	abnormal	negative	yes	yes
28	55	LAL B	no	yes	normal	negative	not evaluable	yes
29	149	LAL T	no	no	normal	tel-aml1	yes	yes
30	28	LAL B	no	no	normal	negative	yes	yes
31	51	LAL B	no	no	abnormal	negative	yes	yes
32	23	LAL B	no	no	abnormal	negative	yes	yes
33	97	LAL B	no	no	abnormal	tel-aml1	not evaluable	yes
34	75	LAL B	no	no	normal	negative	yes	yes
35	30	LAL B	no	no	abnormal	mll+	no	yes
36	184	LAL T	no	yes	normal	negative	not evaluable	yes
37	107	LAL B	no	no	normal	negative	yes	yes
38	52	LAL B	no	no	normal	tel-aml1	no	yes
39	43	LAL B	no	yes	abnormal	negative	yes	yes
40	158	LAL B	no	no	normal	negative	yes	yes
41	47	LAL B	no	no	normal	negative	yes	yes
42	58	LAL B	no	no	abnormal	negative	yes	yes
43	147	LAL B	no	no	abnormal	negayive	yes	yes
44	157	LAL B	no	no	normal	negative	yes	yes
45	145	LAL B	no	no	normal	tel-aml1	not evaluable	yes
46	57	LAL B	no	no	abnormal	negative	not evaluable	yes
47	62	LAL B	no	no	abnormal	negative	not evaluable	yes