| AIC | Akaike’s Information Criterion |
| BIC | Bayesian Information Criterion |
| ED | emergency department |
| GP | general practitioner |
| ICC | intraclass correlation coefficient |
| ICD | International Classification of Diseases |
| MD | mental disorder |
| SRD | substance-related disorder |
| RAMQ | Quebec Health Insurance Plan (Régie de l’assurance maladie du Québec) |
| VIF | variance inflation factor |