The relsurv package is an R package providing a collection of functions that are used in relative survival analysis. While it contains many methods developed by our research team, it also attempts to provide all the traditionally used approaches. All the methods follow the same syntax (same as in the survival package) and can thus easily be compared.

This webpage offers some basic support for the most common practical issues:


About IBMI

Institute for Biostatistics and Medical Informatics (IBMI), formerly Institute for BioMedical Informatics (so still IBMI) was founded by the Faculty of Medicine as a result of a need for a unit which would perform, or coordinate, tasks related to data analysis and providing information, relevant for research in medicine. The programme of the institute, and its development, have been adjusting thorugh time to changes in financing and technological progress, but the basic aim remain the same: to support research in medicine. This is achieved through the following tasks:


Institute for Biostatistics and Medical Informatics
University of Ljubljana, Faculty of Medicine
Vrazov trg 2, 1000 Ljubljana

tel: +386 1 543-77-70
fax: +386 1 543-77-71
email: ibmi (at)