| at both ends | 32 | location |
| based on laparoscopic follow-up | 10 | cause |
| on one end | 9 | location |
| tube → be → open | 151 |
| tube → be → opened | 35 |
| negative | neutral | positive |
| 0.152 | 0.694 | 0.153 |
| Raw frequency | 186 |
| Normalized frequency | 0.769 |
| Modifier score | 0.680 |
| Perplexity | 159.180 |