Characteristics | Absolute counts (%) | Median soluble L1 concentration (25th and 75th percentile (ng/ml)) | Mean soluble L1 concentration ± SD (ng/ml) | p-value |
---|---|---|---|---|
Total | Â | Â | Â | Â |
   GIST | 93(38) | 1.4 (0.8 and 2.7) | 2.1 ± 2.4 |  |
   Controls | 151(62) | 0.5 (0.0 and 1.0) | 0.7 ± 1.4 | >0.001 |
GIST | Â | Â | Â | Â |
   Sex |  |  |  |  |
   Male | 51 (54.8) | 1.5 (0.8 and 2.7) | 2.1 ± 2.6 |  |
   Female | 42 (45.2) | 1.3 (0.8 and 2.4) | 2 ± 2.3 | 0.708 |
   Tumor size (cm) |  |  |  |  |
   <2 | 8 (11) | 1.4 (0.9 and 4.8) | 2.9 ± 3 |  |
   2-5 | 21 (29) | 1.7 (1 and 2.4) | 2.2 ± 2.2 |  |
   5-10 | 21 (29) | 1.2 (0.7 and 2.4) | 1.9 ± 2.1 |  |
   >10 | 22 (31) | 1 (0.4 and 2) | 1.4 ± 1.4 | 0.305 |
   Mitotic count (per 50 HPF) |  |  |  |  |
   <5 | 27 (48) | 1.1 (0.6 and 1.9) | 1.7 ± 2.1 |  |
   5-10 | 8 (14) | 1.1 (0.7 and 2) | 1.3 ± 0.8 |  |
   >10 | 21 (38) | 1.7 (1.1 and 2.6) | 1.9 ± 1.2 | 0.258 |
   Tumor location |  |  |  |  |
   Stomach | 52 (65) | 1.4 (0.9 and 2.6) | 2.0 ± 2.0 |  |
   Small intestine | 23 (29) | 1.5 (0.6 and 2.6) | 1.8 ± 2 |  |
   Others | 5 (6) | 1.1 (0.5 and 3.2) | 1.7 ± 1.5 | 0.921 |
   Resection margin |  |  |  |  |
   R0 | 52 (76) | 1.4(0.8 and 2.6) | 2.1 ± 0.4 |  |
   R1/2 | 16 (24) | 1.4(1.2 and 2.6) | 2.0 ± 0.4 | 0.529 |
   Recurrence |  |  |  |  |
   No | 35 (45) | 1.1 (0.8 and 1.7) | 1.4 ± 1.2 |  |
   Yes | 42 (55) | 1.7 (0.9 and 3) | 2.4 ± 2.3 | 0.049 |
   Imatinib |  |  |  |  |
   No | 35 (46) | 1.4 (0.8 and 3.0) | 2.4 ± 2.7 |  |
   Yes | 41 (54) | 1.5 (0.7 and 2.4) | 1.6 ± 1.2 | 0.673 |
   Risk NIH criteria |  |  |  |  |
   Very low | 5(9) | 1.2 (0.7 and 2.8) | 1.7 ± 1.4 |  |
   Low | 9(16) | 1.1 (0.8 and 1.9) | 1.4 ± 1.0 |  |
   Intermediate | 9(16) | 0.7 (0.3 and 2.4) | 2.0 ± 3.0 |  |
   High | 33(59) | 1.5 (0.8 and 2.4) | 1.7 ± 1.4 | 0.834 |
   Risk AFIP criteria |  |  |  |  |
   Very low | 5(9) | 1.2 (0.7 and 2.8) | 1.7 ± 1.4 |  |
   Low | 11(20) | 1.4 (0.9 and 2.2) | 1.8 ± 1.4 |  |
   Intermediate | 13(23) | 0.7 (0.2 and 2.0) | 1.9 ± 2.8 |  |
   High | 27(48) | 1.5 (1.0 and 2.6) | 1.6 ± 1.1 | 0.717 |