Research Article
Clinical Features of Extragastrointestinal Stromal Tumor Compared with Gastrointestinal Stromal Tumor: A Retrospective, Multicenter, Real-World Study
Table 1
Baseline characteristics before and after propensity score matching.
| | No. (%) | Before matching | After matching | Characteristic | GIST (n = 221) | EGIST (n = 55) | Standardized difference | GIST (n = 43) | EGIST (n = 43) | Standardized difference |
| Sex (%) | Female | 106(48.0) | 24 (43.6) | 0.087 | 18 (41.9) | 19 (44.2) | 0.047 | Male | 115 (52.0) | 31 (56.4) | 25 (58.1) | 24 (55.8) | Age (%) | ≤60 years | 112 (50.7) | 31 (56.4) | 0.114 | 30 (69.8) | 26 (60.5) | 0.196 | >60 years | 109 (49.3) | 24 (43.6) | 13 (30.2) | 17 (39.5) | ECOG (%) | 0 | 67 (30.3) | 11 (20.0) | 0.326 | 9 (20.9) | 11 (25.6) | 0.231 | 1 | 118 (53.4) | 38 (69.1) | 32 (74.4) | 28 (65.1) | >1 | 36 (16.3) | 6 (10.9) | 2 (4.7) | 4 (9.3) | Tumor size (%) | ≤10 cm | 182 (82.4) | 22 (40.0) | 0.965 | 24 (55.8) | 22 (51.2) | 0.093 | >10 cm | 39 (17.6) | 33 (60.0) | 19 (44.2) | 21 (48.8) | Tumor necrosis (%) | Yes | 54 (24.4) | 33 (60.0) | 0.772 | 22 (51.2) | 21 (48.8) | 0.047 | No | 167 (75.6) | 22 (40.0) | 21 (48.8) | 22 (51.2) | Tumor mitosis (%) | ≤5/50 HPF | 137 (62.0) | 30 (54.5) | 0.151 | 22 (51.2) | 24 (58.1) | 0.140 | >5/50 HPF | 84 (38.0) | 25 (45.5) | 21 (48.8) | 18 (41.9) | Histopathological classification (%) | Spindle | 187 (84.6) | 42 (76.4) | 0.209 | 35 (81.4) | 33 (76.7) | 0.115 | Others | 34 (15.4) | 13 (23.6) | 8 (18.6) | 10 (23.3) | Adjuvant therapy (%) | Accepted | 77 (34.8) | 20 (36.4) | 0.032 | 19 (44.2) | 17 (39.5) | 0.094 | Not accepted | 144 (65.2) | 35 (63.6) | 24 (55.8) | 26 (60.5) |
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