Table 4. Pairwise comparison of each study subgroup.

p<0.05 considered significant in overall comparisons; ^*p<0.05, ^**p<0.01, ^***p<0.001. α<0.05/9=0.0056 considered significant by Bonferroni correction in pairwise comparisons (^†α<0.0056). NHL: non-Hodgkin's lymphoma, ref: reference