Table 2. Risk factor analysis for non-response of MALT lymphoma.
| Characteristics | Non-response (n=15) | Response (n=84) | P-value |
|---|---|---|---|
| Endoscopic appearance (%) | NS | ||
| I: protruding, mass | 3 (20.0) | 6 (7.1) | |
| II: granular, gastritis | 1 (6.7) | 18 (21.4) | |
| III: depressed, erosion | 6 (40.0) | 44 (52.4) | |
| IV: excavated, ulceration | 4 (26.7) | 11 (13.1) | |
| V: mixed | 1 (6.7) | 5 (6.0) | |
| Endoscopic location (%) | 0.001 | ||
| Proximala | 10 (80.0) | 19 (22.6) | |
| Distalb | 5 (20.0) | 62 (73.8) | |
| Multifocal | 0 (0) | 3 (3.6) | |
| Depth of gastric wall involvementc (%) | |||
| Mucosa | 5/15 (33.3) | 40/66 (60.6) | |
| Submucosa | 6/15 (40.0) | 22/66 (33.3) | 0.064 |
| Muscularis propria or beyond | 4/15 (26.7) | 4/66 (6.0) | 0.031 |
MALT=mucosa-associated lymphoid tissue.
a
Mid body, high body, fundus or cardia.
b
Antrum, angle or low body.
c
Evaluated by EUS in 67 patients and by histologic examination of surgical specimen in 14 patients.