What is the difference between the result of fitOutcomeModel() in CohortMethod and fitCyvlopsModel() in Cyclops? Both of them show us the hazard ratio but result of them are different…
fitCyclopsModel() is a generic function for fitting various types of regressions.
fitOutcomeModel() is a specific function for fitting comparative effect models. It uses the fitCyclopsModel() to eventually fit the Cox regression, but may perform various other transformations on the data first, depending on what is required for the comparative cohort design.