Inclusion and exclusion criteria
| Inclusion criteria | Exclusion criteria |
| Prediction of admission made by triage nurses at the time of triage | Focusing on prediction for specific presentations |
| Adult patients | Paediatric patients |
| English full texts | Non-English full texts |
| Prospective observational studies | Retrospective observational studies, case studies |
| Prediction based on nurse intuition, including impressions gained from triage | Prediction made by other methods (eg, prediction scores) |