Table 2.
Comparison of selected clinicopathological parameters between esophageal and gastric GIST
| Basic parameters | Esophagus n = 55 | Stomach n = 683 | p-value |
|---|---|---|---|
| Age at diagnosis | |||
| Mean (yr, ± SD) | 60.3 (11.9) | 66.8 (12.6) | < 0.001 (t-test) |
| Median (yr, range) | 61.0 [21.0; 87.9] | 68.7 [12.8; 94.8] | |
| Size of primarius | |||
| Mean (cm, ± SD) | 8.0 (4.8) | 5.1 (4.6) | < 0.001 (t-test) |
| Median (cm, range) | 7.35 [0.2;25.0] | 4.0 [0.1; 32.0] | |
| Mitotic rate per 50 HPF | |||
| Mean (per 50HPF, ± SD) | 13.4 (18.2) | 8.0 (28.1) | 0.005 (Wilcoxon test) |
| Median (per 50HPF, range) | 5.5 [0.0; 79.0] | 2.0 [0.0; 500.0] | |
| Follow-up-time (months) | |||
| Mean (m, ± SD) | 48.2 (46.6) | 59.3 (46.4) | - |
| Median (m, range) | 28.0 [1.9; 202.0] | 49.2 [0.0; 271.4] |