| apnea | 3 | other |
| problem → be related to → sleep | 27 |
| problem → be associated with → sleep | 11 |
| problem → affect → sleep | 5 |
| problem → include → sleep disruption | 3 |
| negative | neutral | positive |
| 0.554 | 0.265 | 0.181 |
| Raw frequency | 46 |
| Normalized frequency | 0.322 |
| Modifier score | 0.850 |
| Perplexity | 57.685 |