Table 1. Patient characteristics.

	VLA-4 Low/CD38 Low	VLA-4 High/CD38 High	VLA-4 Low/CD38 High	VLA-4 High/CD38 Low	Total
N =	83	30	13	18	144
Characteristics	Percent of patients (%)
Sex
Female	45	43	31	44	43
Male	55	57	69	56	57
Rai stage
0	47	23	46	22	39
I-II	48	53	46	56	50
III-IV	5	23	8	22	11
Treatment status
Chemonaive	70	40	54	39	58
Treated	30	60	46	61	42
Risk parameters
IgVH UMT	10	62	70	54	31
FISH High-risk	6	31	27	27	15
ZAP-70 High-risk	21	75	60	40	38

IgVH UMT, unmutated IgVH; FISH High-risk, either del17p, del11q or tri12;