Low grade MALT MALTDLBCL De Novo DLBCL
Post HP eradication CR NR    27/30    (90%)    3/30     (10%)      25/36 a#    (69%) 11/36      (31%)         3/41 b*    (7%) 38/41   (83%)  
Depth SM or above MP or Beyond   27/27   (100%) 0/3         (0%)   23/23a*  (100%) 2/13      (15%)   3/15 b*  (20%) 0/26    (0%)
Chemotherapy            CR            NR   3/3        (100%) 0/3         (0%) 16/16    (100%) 0/11      (0%) 38/38  (100%) 0/34     (0%)
HP=helicobacter pylori, SM=submucosa, Mp=muscularis propria, CR=complete remission, PR partial remission, NR= no response a- Low a grade MALT vs. MALT BLBCL, b- Low-grade MALT vs. De Novo BLBCL c- MALT BLBCL vs. De Novo BLBCL and * P<0.001, $ P<0.01, # P<0.05
Table 3: Result of response rate y in primary gastric lymphoma patients to Helicobacter Pylori treatment.