| by rings of cartilage | 5 | other |
| due to loss of hypoxic respiratory drive | 2 | cause |
| trachea → be → opened | 8 |
| trachea → be held → open | 5 |
| negative | neutral | positive |
| 0.184 | 0.744 | 0.072 |
| Raw frequency | 13 |
| Normalized frequency | 0.487 |
| Modifier score | 0.800 |
| Perplexity | 67.312 |