Criteria for Screening or Diagnostic Tests
Screening or Diagnostic Tests:
Level of Evidence
Level 1
satisfies all the criteria
Screening or Diagnostic Tests:
Level of Evidence
Level 2
satisfies at least #1
Screening or Diagnostic Tests:
Level of Evidence
Level 3
satisfies all except 1
Screening or Diagnostic Tests:
Level of Evidence
Level 4
does not satisfy any of the criteria
Screening or Diagnostic Tests:
Grades of Recommendation
Grade A
should be used
Screening or Diagnostic Tests:
Grades of Recommendation
Grade B
may be used
Screening or Diagnostic Tests:
Grades of Recommendation
Grade C
should not be used
Treatment:
Levels of Evidence
Level 1
meta-analysis or RCT
Treatment:
Levels of Evidence
Level 2a
non-RCT
Treatment:
Levels of Evidence
Level 2b
cohort or case-control
Treatment:
Levels of Evidence
Level 2c
before-after or uncontrolled studies
Treatment:
Levels of Evidence
Level 3
opinions or descriptive studies
Treatment:
Grades of Recommendation
Grade A
should be used
Treatment:
Grades of Recommendation
Grade B
may be used
Treatment:
Grades of Recommendation
Grade C
should not be used