Table 2. Hematologic values . Younger... | American Society of Hematology

Table 2.

Hematologic values

	Younger than 56 y	56-65 y	66-75 y	Older than 75 y
No. patients	368	246	274	80
Laboratory values, median (range)
Hgb level, g/dL*	9.2 (1.7-25.0)	9.0 (4.3-14.4)	9.1 (5.2-14.9)	9.4 (6.2-12.4)
WBC count, × 10⁹/L†	18.6 (0.3-360.0)	12.0 (0.7-274.0)	10.0 (0.6-298.0)	12.7 (0.6-215.6)
PLT count, × 10⁹/L‡	49 (3-999)	49 (5-1200)	61 (2-684)	59 (12-537)
Peripheral blasts, %^§	39 (0-99)	26 (0-99)	24 (0-99)	24 (0-97)
Marrow blasts, %^∥	70 (1-99)	61 (9-99)	65 (0-99)	60 (0-96)
FAB classification of local diagnosis, no. (%)
M1	78 (21)	65 (26)	64 (23)	20 (25)
M2	123 (33)	80 (33)	90 (33)	21 (26)
M4	106 (29)	50 (20)	53 (19)	18 (23)
M5	35 (10)	25 (10)	22 (8)	10 (13)
M6	9 (2)	5 (2)	11 (4)	3 (4)
M7	0	5 (2)	4 (1)	1 (1)
M0	3 (1)	12 (5)	21 (8)	6 (8)
Other AML	1 (0)	4 (2)	9 (3)	1 (1)
Unknown or other	13 (4)	0 (0)	0 (0)	0 (0)

	Younger than 56 y	56-65 y	66-75 y	Older than 75 y
No. patients	368	246	274	80
Laboratory values, median (range)
Hgb level, g/dL*	9.2 (1.7-25.0)	9.0 (4.3-14.4)	9.1 (5.2-14.9)	9.4 (6.2-12.4)
WBC count, × 10⁹/L†	18.6 (0.3-360.0)	12.0 (0.7-274.0)	10.0 (0.6-298.0)	12.7 (0.6-215.6)
PLT count, × 10⁹/L‡	49 (3-999)	49 (5-1200)	61 (2-684)	59 (12-537)
Peripheral blasts, %^§	39 (0-99)	26 (0-99)	24 (0-99)	24 (0-97)
Marrow blasts, %^∥	70 (1-99)	61 (9-99)	65 (0-99)	60 (0-96)
FAB classification of local diagnosis, no. (%)
M1	78 (21)	65 (26)	64 (23)	20 (25)
M2	123 (33)	80 (33)	90 (33)	21 (26)
M4	106 (29)	50 (20)	53 (19)	18 (23)
M5	35 (10)	25 (10)	22 (8)	10 (13)
M6	9 (2)	5 (2)	11 (4)	3 (4)
M7	0	5 (2)	4 (1)	1 (1)
M0	3 (1)	12 (5)	21 (8)	6 (8)
Other AML	1 (0)	4 (2)	9 (3)	1 (1)
Unknown or other	13 (4)	0 (0)	0 (0)	0 (0)

Hgb indicates hemoglobin; WBC, white blood cell; PLT, platelet; FAB, French-American-British; AML, acute myeloid leukemia.

n = 949.

n = 968.

n = 965.

n = 931.

n = 907.