| often | 24 | temporal |
| in nature | 19 | location |
| with periods of exacerbations and remissions | 6 | other |
| disease → be → chronic | 362 |
| disease → be → chronic disorder | 10 |
| disease → be → chronic condition | 9 |
| disease → be → a chronic | 7 |
| disease → include → chronic | 3 |
| disease → be characterized by → chronic | 3 |
| negative | neutral | positive |
| 0.639 | 0.308 | 0.054 |
| Raw frequency | 394 |
| Normalized frequency | 0.792 |
| Modifier score | 0.700 |
| Perplexity | 173.323 |