Supplementary Material for: The association between surgical patient selection and hospital variation in failure to cure in esophageal cancer surgery. A nation-wide cohort study.

Introduction; Failure to cure describes: 1)non-resectional(‘open-close’) surgery, 2)non-radical surgery(R1-R2) and/or 3)postoperative mortality. This study aims to investigate whether hospitals offering surgery to a large proportion of patients have hig...