| in later childhood | 4 | temporal |
| during pregnancy | 4 | temporal |
| to heroin | 3 | other |
| baby → be → exposed | 36 |
| baby → be exposed in → utero | 5 |
| negative | neutral | positive |
| 0.482 | 0.431 | 0.087 |
| Raw frequency | 41 |
| Normalized frequency | 0.512 |
| Modifier score | 0.900 |
| Perplexity | 339.998 |