QoLR: An R Package for the Longitudinal Analysis of Health-Related Quality of Life in Oncology

Health-related quality of life has become increasingly important in clinical trials over the past two decades. The R package QoLR is a recently developed package for the longitudinal analysis of health-related quality of life in oncology. This package contains the scoring of most of the European Organisation for Research and Treatment of Cancer quality of life questionnaires and some programs to analyze the time to a health-related quality of life score deterioration as a modality of longitudinal analysis in oncology.