A reconstructed melanoma data set for evaluating differential treatment benefit according to biomarker subgroups

The data presented in this article are related to the research article entitled "Measuring differential treatment benefit across marker specific subgroups: the choice of outcome scale" (Satagopan and Iasonos, 2015) [1]. These data were digitally reconstructed from figures published in Larkin et al. (2015) [2]. This article describes the steps to digitally reconstruct patient-level data on time-to-event outcome and treatment and biomarker groups using published Kaplan-Meier survival curves. The reconstructed data set and the corresponding computer programs are made publicly available to enable further statistical methodology research.