| more often | 3 | degree |
| joint → cause → headache | 6 |
| joint → result in → headache | 3 |
| joint → lead to → a form of tension headaches | 3 |
| negative | neutral | positive |
| 0.764 | 0.225 | 0.011 |
| Raw frequency | 12 |
| Normalized frequency | 0.243 |
| Modifier score | 0.500 |
| Perplexity | 465.437 |