Poor prognostic factors by cell type for leukemia include:
Age--patients over age 60
WBC > 30,000 per microliter
Serum LDH over 400 IU
Slow response to therapy
Systemic infection at time of diagnosis
Central nervous system involvement
Myeloblastic leukemia other than with cytogenetic abnormality
in t(8;121)
Myelomonocytic leukemia with abnormal marrow eosinophils
Age--younger than 3 or older than 7
Gender--males have worse prognosis
WBC greater than 50,000 per microliter in children or 30,000 per microliter in adults
Adult form of lymphocytic leukemia
Burkitt type cell leukemia
Any lymphocytic leukemia with immunologic subtype of B cell,
T cell or null cell
Hepatosplenomegaly, lymphadenopathy, mediastinal mass, central nervous system involvement
Presence of Philadelphia chromosome abnormality
AML 65%
ALL 60 - 80%
Stage 0 12 years
Stage I 8 years
Stage II 6 years
Stage III > 1 year
Stage IV > 1 year
Median survival is about 5 years.
Refractory anemia 2-5 years
Refractory anemia with sideroblasts insufficient data
Refractory anemia with excess blasts 6-9 months
Refractory anemia with excess blasts in
transformation < 6 months
Chronic myelomonocytic leukemia 14-18 months
Median survival is 10-15 years if complications are controlled.