Objectives:Inflammatory bowel disease (IBD) is associated with an increased risk of colorectal cancer
(CRC) compared to patients without IBD. There is a lack of population-based data evaluating
the in-patient surgical outcomes of CRC in IBD patients. We sought to compare the hospital
outcomes of CRC surgery between patients with and without IBD.Methods:We used the National Inpatient Sample (2008–2012) and Nationwide Readmissions Database
(NRD, 2013) and selected all adult patients (age ≥18 years) with ulcerative colitis (UC) or
Crohn’s disease (CD) who underwent CRC surgery. Multivariate analysis for in-patient
outcomes of postoperative complications, health-care resource utilization, readmission rate,
and mortality were performed.Results:A total of 397,847 patients underwent CRC surgery from 2008 to 2012, of which 0.8%
(3,242) had IBD. Compared to CRC in non-IBD patients, CRC in IBD patients had longer length of
stay (adjusted coefficient (AC) 0.86 days, 95% confidence interval (CI): 0.42, 1.30),
more likely developed postoperative complications (adjusted odds ratio (AOR) 1.26, 95%
CI: 1.06, 1.50), including postoperative infection (AOR 1.69, 95% CI: 1.20, 2.38) and
deep vein thrombosis (AOR 2.42, 95% CI: 1.36, 4.28), and more frequently required blood
transfusion (AOR 1.59, 95% CI: 1.30, 1.94). CRC in IBD patients was more likely to be
readmitted within 30 days (AOR 1.44, 95% CI: 1.01, 2.04).Conclusion:At a population level, IBD adversely impacts outcomes at the time of CRC surgery.