Table 3: Comparisons of cystatin C levels measured at the time of diagnosis between groups of patients with normal and elevated LDH level, groups of absent and present B symptoms, and groups under and over 60 years of age.

ParameterNumber of patients
All patientsaAggressiveExtranodalNodal

LDH
 Normal33231310
 Elevated1918108
U 225 3821
 P value0,0930,0220,1010,101

B symptoms
 No 12963
 Yes40321715
U 150942916
 P value0,0510,1200,1350,498

Age
 ≤60 years29231112
 >60 years2217116
U 1244221
P value0,0150,0510,2430,180

Statistically significant difference.
aTotal group of patients.