Table 6 Comparison of clinicopathological characteristics between duodenal and gastric GISTs
Characteristics | Duodenum (n = 300) | Stomach (n = 378) | P value |
|---|---|---|---|
Age | Â | Â | 0.791 |
  ≤ 60 | 161 (60.3%) | 224 (59.3%) |  |
  > 60 | 106 (39.7%) | 154 (40.7%) |  |
Gender | Â | Â | 0.826 |
 Male | 143 (49.1%) | 189 (50.0%) |  |
 Female | 148 (50.9%) | 189 (50.0%) |  |
Tumor size |  |  | < 0.001 |
  ≤ 2 cm | 34 (12.3%) | 126 (33.5%) |  |
 2–5 cm | 135 (48.7%) | 138 (36.7%) |  |
 5–10 cm | 73 (26.4%) | 86 (22.9%) |  |
  > 10 cm | 35 (12.6%) | 26 (6.9%) |  |
Mitotic index |  |  | < 0.001 |
  ≤ 5 | 181 (75.4%) | 225 (61.1%) |  |
  > 5 | 59 (24.6%) | 143 (38.9%) |  |
Morphology | Â | Â | 0.825 |
 Spindle | 148 (92.5%) | 341 (93.9%) |  |
 Epithelioid | 1 (0.6%) | 2 (0.6%) |  |
 Mixed | 11 (6.9%) | 20 (5.5%) |  |
NIH risk category |  |  | < 0.001 |
 Very low | 25 (9.7%) | 105 (28.5%) |  |
 Low | 104 (40.3%) | 97 (26.3%) |  |
 Intermediate | 2 (0.8%) | 87 (23.6%) |  |
 High | 127 (49.2%) | 80 (21.7%) |  |