| in a number of states | 14 | location |
| in all school-age children | 13 | location |
| for school attendance | 13 | purpose |
| vaccine → be → mandatory | 132 |
| vaccine → be → compulsory | 21 |
| vaccine → become → mandatory | 18 |
| vaccine → be made → mandatory | 14 |
| vaccine → become → compulsory | 6 |
| vaccine → be made to be → compulsory mandatory | 4 |
| vaccine → make → mandatory | 3 |
| negative | neutral | positive |
| 0.298 | 0.585 | 0.117 |
| Raw frequency | 198 |
| Normalized frequency | 0.570 |
| Modifier score | 0.587 |
| Perplexity | 76.791 |