| in extreme cases | 6 | degree |
| earlier on | 5 | temporal |
| often | 5 | degree |
| symptom → be → irregular | 26 |
| symptom → include → irregular | 16 |
| symptom → be → irregularity | 8 |
| symptom → be followed by → irregular | 4 |
| symptom → include → irregularity | 3 |
| negative | neutral | positive |
| 0.741 | 0.248 | 0.011 |
| Raw frequency | 57 |
| Normalized frequency | 0.397 |
| Modifier score | 0.733 |
| Perplexity | 137.014 |