February, 2003
© 2000, 2001, 2003 Scott S. Emerson, M.D., Ph.D.
Conditions
under which current practice will be changed
Adopting a new
treatment
·Superiority
-Better than
using no treatment (efficacious)
-Better than
some existing efficacious treatment
·Equivalence
or Noninferiority
-Equal to some
existing efficacious treatment
-Not markedly
worse than some existing efficacious treatment