International Journal of Pediatrics / 2009 / Article / Tab 2

Clinical Study

Characterization of Acute Lymphoblastic Leukemia Subtypes in Moroccan Children

Table 2

Patients' characteristics.

FeaturesAll patients T-cell ALL pB-cell ALL -value

Age at diagnosis (y)
Median796
Range0.5–170.5–170.5–17
.048
16 (2.18%)1 (1.69%)5 (2.31%)
1–10184 (66.91%)32 (54.24%)152 (70.37%)
1085 (39.91%)26 (44.07%)59 (27.31%)
Gender.008
M161 (58.55%)44 (57.63%)117 (54.17%)
F114 (41.45%)15 (25.42%)99 (45.83%)
Sex ratio (M/F)
FAB subtype n (%).85
L1144 (52.36%)34 (57.63%)110 (50.93%)
L2101 (36.73%)22 (37.23%)79 (36.57%)
NS30 (10.91%)3 (5.08%)27 (12.50%)

Leukocyte count ( 109/L)
Median20.1411611.38
Range1–8301.5–7181–830
.0001
50178 (94.96%)16 (27.12%)162 (75.35%)
5096 (35.05%)43 (72.88%)53 (24.65%)
CNS disease 4/218 (1.83%)2/45 (4.44%)2/173 (1.16%).42
Mediastinum 35/218 (16.05%)28/45 (62.22%)7/173 (4.05%) .0001

ALL: acute lymphoblastique leukaemia, F: female, M: male, Y: year, CNS: central nervous system, NS: not specified. Mature B-cell ALL excluded. Cases with completed data. (statistically significant).

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