Table 1.
Summary of stool samples collected and analyzed
| Tumor location | Total collected samples | Successful DNA extraction | Successful sequencing | Number of cases with only known mutations | Number of cases with |
| Mutations, all | |||||
| Stomach | 41 | 35 | 32 (78) | 5 (15.6) | 8 (25) |
| Carcinoma | 38 | 32 | 29 | 3 | 6 |
| Intestinal type | 18 | 17 | 15 | 1 | 1 |
| Diffuse type | 20 | 15 | 14 | 2 | 5 |
| Benign | 3 | 3 | 3 | 2 | 2 |
| Hamartoma | 1 | 1 | 1 | 0 | 0 |
| Dysplasia | 1 | 1 | 1 | 1 | 1 |
| NET | 1 | 1 | 1 | 1 | 1 |
| Colorectal | 46 | 42 | 40 (87) | 12 (30) | 12 (30) |
| Carcinoma | 40 | 37 | 35 | 9 | 9 |
| Benign | 6 | 5 | 5 | 3 | 3 |
| Adenoma | 4 | 3 | 3 | 2 | 2 |
| Dysplasia | 1 | 1 | 1 | 0 | 0 |
| Leiomyoma | 1 | 1 | 1 | 1 | 1 |
| Healthy controls | 14 | 13 | 13 (92.9) | 0 | 2 (15) |
| Total | 101 | 90 | 85 | 17 | 22 |
Data are presented as n or n (%). NET: Neuroendocrine tumor.