Table 2 Comparison of clinicopathological factors of duodenal GISTs according to surgical procedure
Characteristics | Limited resection (n = 200) | Pancreaticoduodenectomy (n = 77) | P value |
|---|---|---|---|
Age | Â | Â | 0.782 |
  ≤ 60 | 101 (60.5%) | 48 (62.3%) |  |
  > 60 | 66 (39.5%) | 29 (37.7%) |  |
Gender | Â | Â | 0.205 |
 Male | 100 (51.3%) | 32 (42.7%) |  |
 Female | 95 (48.7%) | 43 (57.3%) |  |
Anatomical location |  |  | < 0.001 |
 Superior portion | 37 (19.7%) | 3 (5.1%) |  |
 Descending portion | 73 (38.8%) | 52 (88.1%) |  |
 Horizontal portion | 56 (29.8%) | 4 (6.8%) |  |
 Ascending portion | 22 (11.7%) | 0 |  |
Tumor size |  |  | < 0.001 |
  ≤ 2 cm | 28 (15.1%) | 3 (4.1%) |  |
 2–5 cm | 102 (54.8%) | 25 (33.8%) |  |
 5–10 cm | 37 (19.9%) | 32 (43.2%) |  |
  > 10 cm | 19 (10.2%) | 14 (18.9%) |  |
Mitotic index |  |  | < 0.001 |
  ≤ 5 | 144 (83.2%) | 32 (52.5%) |  |
  > 5 | 29 (16.8%) | 29 (47.5%) |  |
Morphology | Â | Â | 0.146 |
 Spindle | 100 (94.3%) | 39 (86.7%) |  |
 Epithelioid | 0 | 1 (2.2%) |  |
 Mixed | 6 (5.7%) | 5 (11.1%) |  |
NIH risk category |  |  | < 0.001 |
 Very low | 23 (12.8%) | 2 (2.8%) |  |
 Low | 87 (48.6%) | 15 (21.1%) |  |
 Intermediate | 2 (1.1%) | 0 |  |
 High | 67 (37.4%) | 54 (76.1%) |  |
Neoadjuvant therapy | Â | Â | 0.472 |
 No | 194 (97.0%) | 73 (94.8%) |  |
 Yes | 6 (3.0%) | 4 (5.2%) |  |
Adjuvant therapy | Â | Â | 0.362 |
 No | 165 (82.5%) | 67 (87.0%) |  |
 Yes | 35 (17.5%) | 10 (13.0%) |  |