Table 1 Clinical and biological characteristics of PTCL patients (n = 61)

Age

 > 60 years

11

12

0.291

 ≤ 60 years

19

19

Sex

 Female

10

9

0.963

 Male

20

22

Ann Arbor stage

 I to II

14

13

0.257

 III to IV

16

18

Extranodal involvement

 No

19

25

0.091

 Yes

11

6

Serum LDH level

 Normal

11

19

0.036

 Abnormal

19

12

IPI score

 Low and intermediate low risk

16

25

0.010

 Intermediate high and high risk

14

6