. Author manuscript; available in PMC: 2014 Nov 3.

Published in final edited form as: Leukemia. 2009 Sep 10;23(12):2275–2280. doi: 10.1038/leu.2009.181

Table 2. Characteristics of AML-M6a versus AML-M6b patients.

Characteristics	AML-M6a	AML-M6b	P
No. Patients	78	30
Sex: Male, no. (%)	53 (68)	17 (55)	0.36
Median Age, Years (range)	57 (17-76)	61 (18-85)	0.07
Prior AHD/MDS, no. (%)	37 (47)	17 (57)	0.51
Prior Chemo or XRT, no. (%)	14 (18)	13 (43)	0.01
Median WBC, ×10⁹/L (range)	2.1 (0.5-45.1)	3.6 (0.3-21.8)	0.07
Median Hb, g/dL (range)	7.7 (2.5-12.6)	7.7 (5.3-11.8)	0.33
Median Platelets, × 10⁹/L (range)	45 (3-222)	21 (3-119)	0.01
Median β2 Microglobulin, mg/L (range)	2.1 (1.2-8.1)	3.2 (1.7-13.3)	0.01
Median LDH, IU/L (range)	677 (226-25,980)	1087 (399-17,313)	0.004
Cytogenetics^*, no. (%)
Poor	50 (65)	25 (86)	0.03
Intermediate	27 (35)	4 (14)
BM Dysplasia^**, no. (%)	56 (80)	14 (93)	0.28
Protected Environment, no. (%)	60 (77)	16 (53)	0.02

there were 77 available patients in M6a group and 29 in M6b

^**

there were 71 available patients in M6a group and 14 in M6b