| from the desired location | 10 | location |
| from the patient | 8 | other |
| proximally | 7 | manner |
| catheter → be → retracted | 70 |
| catheter → be removed in → position | 3 |
| catheter → be withdrawn to → position | 3 |
| negative | neutral | positive |
| 0.076 | 0.859 | 0.065 |
| Raw frequency | 76 |
| Normalized frequency | 0.537 |
| Modifier score | 0.500 |
| Perplexity | 248.829 |