February, 2003
© 2000, 2001, 2003 Scott S. Emerson, M.D., Ph.D.
Hazard ratios (Proportional
hazards survival model)
Right censored time to event:
·e.g., time to death
Outcome summarized by hazard (semi-parametric)
Compare groups by (log) ratio of hazards
Information proportional to number of events