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Table 1 Clinical characteristic of S-ALCL patients, according to ALK expression

From: Clinical and laboratory characteristics of systemic anaplastic large cell lymphoma in Chinese patients

Clinical feature ALK+S-ALCL ALK-S-ALCL P
patients no. 51 41  
Median age (all patients) (range), y 22(3–63) 30(2–74) <0.05
Median age (without pediatric patients) (range), y 38(19–63) 34(19–74)  
Male–female ratio 1.7:1 1.7:1 1.000
Stage, no.(%)    1.000
I 16(31) 11(27)  
II 10(20) 9(22)  
III 17(33) 13(32)  
IV 8(16) 8(19)  
location of tumor, no. (%)    0.675
nodal 24(47) 17(41)  
extranodal 27(53) 24(59)  
B symptom, no. (%)    0.095
with 28(55) 15(37)  
without 23(45) 26(63)