| within a few years | 7 | temporal |
| suddenly | 5 | manner |
| often | 2 | temporal |
| symptom → cause → confusion | 8 |
| symptom → lead to → confusion | 6 |
| symptom → be accompanied by → confusion | 5 |
| symptom → occur → confusion | 5 |
| symptom → occur as → confusion | 4 |
| symptom → begin with → confusion | 3 |
| negative | neutral | positive |
| 0.828 | 0.163 | 0.009 |
| Raw frequency | 31 |
| Normalized frequency | 0.315 |
| Modifier score | 0.700 |
| Perplexity | 391.367 |