Table 4.
Demographic and clinicopathological characteristics of primary gastric lymphoma patients with gastric cancer and gastric precancerous conditions, mean ± SD, median (interquartile range), or N(%).
| Characteristic | Gastric cancer (n = 24) | Gastric precancerous conditions (n = 69) | Control (n = 381) | p Value |
|---|---|---|---|---|
| Sex | 0.804 | |||
| Male | 16 (66.7%) | 46 (66.7%) | 240 (63.0%) | |
| Female | 8 (33.3%) | 23 (33.3%) | 141 (37.0%) | |
| Diagnosis age of lymphoma, y | 52 (5.5) | 51 (12) | 53 (9) | 0.502 |
| Diagnosis age of gastric cancer or precancerous conditions, y | 55 (5) | 55 (9) | / | 0.795 |
| Diagnosis intervala, y | 2 (5) | 3 (3) | / | 0.102 |
| Lesion location of lymphoma | ||||
| Gastric antrum | 10 (41.6%) | 34 (49.3%) | 184 (48.3%) | 0.802 |
| Gastric body | 14 (58.3%) | 32 (46.4%) | 229 (60.1%) | 0.104 |
| Others | 4 (16.7%) | 7 (10.1%) | 47 (12.3%) | 0.697 |
| Endoscopic manifestation of lymphoma | ||||
| Ulcerative type | 14 (58.3%) | 38 (55.1%) | 108 (28.3%) | < 0.001 |
| Mass or polypoid type | 5 (20.8%) | 15 (21.7%) | 77 (20.2%) | |
| Other type | 5 (20.8%) | 16 (23.2%) | 196 (51.4%) | |
| Pathological type of lymphoma | 0.816 | |||
| DLBCL | 12 (50.0%) | 35 (50.7%) | 186 (48.8%) | |
| MALT lymphoma | 12 (50.0%) | 30 (43.5%) | 174 (45.7%) | |
| Others | 0 (0.0%) | 4 (5.8%) | 21 (5.5%) | |
| Lugano classification of lymphoma | < 0.001 | |||
| I + II | 10 (41.6%) | 31 (44.9%) | 306 (80.3%) | |
| IIE + IV | 14 (58.3%) | 38 (55.1%) | 75 (19.7%) | |
| B symptoms of lymphoma | 0.268 | |||
| Yes | 7 (29.2%) | 24 (34.8%) | 97 (25.5%) | |
| No | 17 (70.8%) | 45 (65.2%) | 284 (74.5%) |
DLBCL: diffuse large B-cell lymphoma; MALT: mucosa-associated lymphoid tissue.
aDiagnosis interval between gastric cancer or gastric precancerous conditions and primary gastric lymphoma of each case is presented as an estimated whole year. The diagnosis of gastric cancer or gastric precancerous conditions earlier than gastric lymphoma is indicated by a negative number, and the diagnosis of gastric cancer or gastric precancerous conditions later than gastric lymphoma is indicated by a positive number.