A detailed retrospective analysis of clinical outcome of surgery for the cohort has previously been reported [15 (link)]. Demographic data and clinical results from that study are given in Supplementary Tables
Data on follow-up from medical records have then been re-analysed regarding outpatient visits, emergency visits, radiology, in-hospital stay, surgery, and intensive care unit (ICU)-care and are updated as of February 2022. Patients were followed to death or last note in medical records; follow-up time was calculated from day of index SBO-operation until death or last note in medical records. Patients lost to follow-up (e.g., foreigners) were included only as long as they had any documented contact with the participating hospitals. The study was approved by the local ethical committee at Uppsala University (Registration number 2015/196) and registered at