Post-Operative Safety Outcomes and 5-Year Healthcare Utilisation After Bariatric Surgery vs. Other Elective Types of Surgical Treatments - A Retrospective Observational Cohort Study.

Despite a higher number of preoperative co-morbidities and ASA score, MBS had significantly lower odds of 30-day major complications (Clavien–Dindo grade≥IIIa) compared to CR (6%;p = 0.013) and GEJ (8%;p = 0.004).

No differences in complication rates with all other groups.

The total number of procedure-related readmissions over 5-year after MBS were similar to hernia surgery, neck endocrine surgery or IC and lower than CR, AS, and GEJ.

There was a higher number of outpatient visits after MBS in the first two years after surgery, consistent with national protocols and no differences in 5-year A&E attendance among groups.