II. Strength of Recommendation
- Rating A: Good Evidence to Support
- Pap Smear for Cervical Cancer
- Mammogram for Breast Cancer after age 50 years
- Rating B: Fair Evidence to Support
- Rating C: Insufficient Evidence to Recommend
- Mammogram for Breast Cancer age 40-49 years
- Rating D: Fair Evidence Against
- Rating E: Good Evidence Against
III. Quality of Evidence
- Level I
- Evidence from 1 or more randomized controlled trials
- Level II-1
- Evidence from controlled trials, but no randomization
- Level II-2
- Evidence from cohort or case-control studies
- Level II-3
- Evidence from multiple time or historic controls
- Level III
- Expert opinion based on clinical experience
IV. References
- (1996) USPSTF Clinical Preventative Services, 2d ed