| CEBM | ||
|---|---|---|
| SORT Level | Treatment/screening | Other categories |
| 1 | Levels 1a to 1c | Levels 1a to 1c |
| 2 | Level 2 or 3 | Levels 2 to 4 |
| 3 | Level 4 or 5 and any study that measures intermediate or surrogate outcomes | Level 5 and any study that measures intermediate or surrogate outcomes |