Skip to Main Content


|Download (.pdf)|Print
Strength of Recommendation (SOR) Definition
A Recommendation based on consistent and good-quality patient-oriented evidence.*
B Recommendation based on inconsistent or limited-quality patient-oriented evidence.*
C Recommendation based on consensus, usual practice, opinion, disease-oriented evidence, or case series for studies of diagnosis, treatment, prevention, or screening.*

*See Appendix A on pages 1603–1606 for further information.

Pop-up div Successfully Displayed

This div only appears when the trigger link is hovered over. Otherwise it is hidden from view.