| USPSTF . | GRADE . |
|---|---|
| Level A: Good scientific evidence suggests that the benefits of the clinical service substantially outweigh the potential risks. | Strong |
| Level B: At least fair scientific evidence suggests that the benefits of the clinical service outweighs the potential risks. | |
| Level C: At least fair scientific evidence suggests that there are benefits provided by the clinical service, but the balance between benefits and risks are too close for making general recommendations. | Weak |
| Level D: At least fair scientific evidence suggests that the risks of the clinical service outweighs potential benefits. | |
| Level I: Scientific evidence is lacking, of poor quality, or conflicting, such that the risk versus benefit balance cannot be assessed. |
| USPSTF . | GRADE . |
|---|---|
| Level A: Good scientific evidence suggests that the benefits of the clinical service substantially outweigh the potential risks. | Strong |
| Level B: At least fair scientific evidence suggests that the benefits of the clinical service outweighs the potential risks. | |
| Level C: At least fair scientific evidence suggests that there are benefits provided by the clinical service, but the balance between benefits and risks are too close for making general recommendations. | Weak |
| Level D: At least fair scientific evidence suggests that the risks of the clinical service outweighs potential benefits. | |
| Level I: Scientific evidence is lacking, of poor quality, or conflicting, such that the risk versus benefit balance cannot be assessed. |
Abbreviations: GRADE, Grading of Recommendations Assessment, Development and Evaluation for the Development of Guidelines; OCEBM, Oxford (UK) Center for Evidence Based Medicine; PORT, Patient Outcomes Research Team; USPSTF, U.S. Preventive Services Task Force.
| USPSTF . | GRADE . |
|---|---|
| Level A: Good scientific evidence suggests that the benefits of the clinical service substantially outweigh the potential risks. | Strong |
| Level B: At least fair scientific evidence suggests that the benefits of the clinical service outweighs the potential risks. | |
| Level C: At least fair scientific evidence suggests that there are benefits provided by the clinical service, but the balance between benefits and risks are too close for making general recommendations. | Weak |
| Level D: At least fair scientific evidence suggests that the risks of the clinical service outweighs potential benefits. | |
| Level I: Scientific evidence is lacking, of poor quality, or conflicting, such that the risk versus benefit balance cannot be assessed. |
| USPSTF . | GRADE . |
|---|---|
| Level A: Good scientific evidence suggests that the benefits of the clinical service substantially outweigh the potential risks. | Strong |
| Level B: At least fair scientific evidence suggests that the benefits of the clinical service outweighs the potential risks. | |
| Level C: At least fair scientific evidence suggests that there are benefits provided by the clinical service, but the balance between benefits and risks are too close for making general recommendations. | Weak |
| Level D: At least fair scientific evidence suggests that the risks of the clinical service outweighs potential benefits. | |
| Level I: Scientific evidence is lacking, of poor quality, or conflicting, such that the risk versus benefit balance cannot be assessed. |
Abbreviations: GRADE, Grading of Recommendations Assessment, Development and Evaluation for the Development of Guidelines; OCEBM, Oxford (UK) Center for Evidence Based Medicine; PORT, Patient Outcomes Research Team; USPSTF, U.S. Preventive Services Task Force.
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