Table 8 The distribution of leukemia subtypes in three age categories (1999–2013)
From: The burden of leukemia in the Kingdom of Saudi Arabia: 15 years period (1999–2013)
Variables | Children | Adults | Elderly | ||||
|---|---|---|---|---|---|---|---|
Morphology | No. | % | No. | % | No. | % | P value |
Precursor B-cell lymphoblastic leukemia | 1,215 | 36.6 | 388 | 10.2 | 27 | 1.7 | 0.001 |
Precursor cell lymphoblastic leukemia, NOS | 1,043 | 31.4 | 404 | 10.6 | 58 | 3.6 | |
Precursor T-cell lymphoblastic leukemia | 177 | 5.3 | 144 | 3.8 | 2 | 0.1 | |
Acute myeloid leukemia, NOS | 250 | 7.5 | 554 | 14.6 | 236 | 14.8 | |
Acute leukemia, NOS | 68 | 2.0 | 78 | 2.1 | 52 | 3.3 | |
Acute monocytic leukemia | 55 | 1.7 | 126 | 3.3 | 53 | 3.3 | |
Leukemia, NOS | 34 | 1.0 | 84 | 2.2 | 100 | 6.3 | |
Acute myelomonocytic leukemia | 37 | 1.1 | 127 | 3.3 | 35 | 2.2 | |
Acute myeloid leukemia with maturation | 45 | 1.4 | 91 | 2.4 | 30 | 1.9 | |
Acute myeloid leukemia without maturation | 18 | 0.5 | 60 | 1.6 | 25 | 1.6 | |
Acute promyelocytic leukemia, t(15;17)(q22;q11–12) | 61 | 1.8 | 220 | 5.8 | 34 | 2.1 | |
B-cell chronic lymphocytic leukemia/small lymphocytic lymphoma | 2 | 0.1 | 229 | 6.0 | 519 | 32.5 | |
Chronic myelogenous leukemia, BCR/ABL positive | 4 | 0.1 | 86 | 2.3 | 17 | 1.1 | |
Chronic myeloid leukemia, NOS | 59 | 1.8 | 875 | 23.0 | 197 | 12.4 | |
All others | 250 | 7.5 | 333 | 8.8 | 210 | 13.2 | |