Table 4. The prognostic scoring system.

Factors	1	2	3
Sex	Female	Male
Age	60–69 years	70–79 years	≧80 years
WBC at diagnosis	≦30×10 ˆ9/L		> 30×10 ˆ9/L
LDH at diagnosis	≦250 U/L	>250 U/L, ≦1,000 U/L	>1,000 U/L
BM blasts at diagnosis	≧20%, ≦50%	>50%, ≦80%	> 80%

^*5–7 points  =  good& risk, 8–  points  =  intermediate risk, 11–12 points  =  poor risk.