| rarely | 4 | degree |
| from eight global genotypes | 3 | other |
| between ptc patients | 2 | location |
| genotype → be → observed | 16 |
| genotype → be → indicated | 5 |
| genotype → be → evident | 3 |
| negative | neutral | positive |
| 0.119 | 0.794 | 0.088 |
| Raw frequency | 24 |
| Normalized frequency | 0.756 |
| Modifier score | 0.440 |
| Perplexity | 110.491 |