| generally | 4 | degree |
| without involving the nerve root | 2 | manner |
| disc → cause back → pain | 8 |
| disc → affect → lower back | 4 |
| disc → cause → low back pain | 3 |
| negative | neutral | positive |
| 0.609 | 0.371 | 0.020 |
| Raw frequency | 15 |
| Normalized frequency | 0.348 |
| Modifier score | 0.800 |
| Perplexity | 364.960 |