Table 4.

Suggested Walkover between the CEBM and the SORT Taxonomies for Assessing the Level of Evidence of an Individual Study

SORTCEBM
Treatment/ScreeningOther Categories
Level 1Levels 1a to 1cLevels 1a to 1c
Level 2Level 2 or 3Levels 2 to 4
Level 3Level 4 or 5 and any study that measures intermediate or surrogate outcomesLevel 5 and any study that measures intermediate or surrogate outcomes
  • CEBM, Centre for Evidence-Based Medicine; SORT, Strength of Recommendation Taxonomy.