Good prognostic factors with ALL include hyperdiploidy, the t(__:__) translocation, being female, and the L1 subtype.
Poorer prognostic factors include age <1 or > 10 years old. Chromosome t(___:__) positive, or translocation t(__:__), WBC count > 50,000 on presentation, mature B-cell leukemia, T-cell leukemia, and/or being african american or hispanic.
t(12:21) translocation = good
t(9,22) aka Philadelphia Chromosome = Bad
t(4:11) = Bad