| Interventions |
Elective or emergent colonic resection, defined using the procedural ICD-10 codes: 32000-00 Limited excision of large intestine with formation of stoma 32000-01 Right hemicolectomy with formation of stoma 32000-02 Laparoscopic limited excision of large intestine with formation of stoma 32000-03 Laparoscopic right hemicolectomy with formation of stoma 32003-00 Limited excision of large intestine with anastomosis 32003-01 Right hemicolectomy with anastomosis 32003-02 Laparoscopic limited excision of large intestine with anastomosis 32003-03 Laparoscopic right hemicolectomy with anastomosis 32004-00 Subtotal colectomy with formation of stoma 32004-01 Extended right hemicolectomy with formation of stoma 32004-02 Laparoscopic subtotal colectomy with formation of stoma 32004-03 Laparoscopic extended right hemicolectomy with formation of stoma 32005-00 Subtotal colectomy with anastomosis 32005-01 Extended right hemicolectomy with anastomosis 32005-02 Laparoscopic subtotal colectomy with anastomosis 32005-03 Laparoscopic extended right hemicolectomy with anastomosis 32006-00 Left hemicolectomy with anastomosis 32006-01 Left hemicolectomy with formation of stoma 32006-02 Laparoscopic left hemicolectomy with anastomosis 32006-03 Laparoscopic left hemicolectomy with formation of stoma 32009-00 Total colectomy with ileostomy 32009-01 Laparoscopic total colectomy with ileostomy 32012-00 Total colectomy with ileorectal anastomosis 32012-01 Laparoscopic total colectomy with ileorectal anastomosis The procedures were performed at the Austin Hospital, a tertiary hospital with colorectal expertise, over the period of January 2013 and June 2018. Patients were followed-up for 30 days following discharge from the index admission. If no subsequent readmissions occurred within this period, follow-up ceased. If a patient was readmitted within the 30-day period, then the readmission was included, and followi |