Abstract
Background
Diabetes is the sixth most common cause of death in the US and causes significant postoperative mortality and morbidity.
Objective
To characterize the impact of diabetes among patients undergoing surgery for colorectal cancer.
Design
This is is a retrospective cohort study.
Participants
Patients in the Nationwide Inpatient Sample (NIS) who had undergone colorectal cancer surgery between 1998 and 2005.
Measurements
Using multivariate regression, we determined the association of diabetes status with postoperative mortality, postoperative complications, and length of stay.
Key Results
An estimated 218,534 patients had undergone surgery for colorectal cancer. We categorized subjects by the presence of diabetes, the prevalence of which was 15%. Crude postoperative in-hospital mortality was lower among diabetics compared to non-diabetics (2.5% vs. 3.2%, P < 0.0001). Adjusted mortality was 23% lower in those with diabetes compared to non-diabetics (aOR 0.77; 95% CI: 0.71–0.84). Diabetics also had lower adjusted post-operative complications compared to non-diabetics (aOR 0.82; 95% CI: 0.79–0.84). In uninsured individuals and patients <50 years of age, there was no protective association between diabetes and either in-hospital mortality or postoperative complications.
Conclusions
In patients undergoing colorectal cancer surgery, those with diabetes had a 23% lower mortality and fewer postoperative complications compared to non-diabetics. The mechanisms underlying this unexpected observation warrant further investigation.
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Acknowledgements
Dr. Nguyen had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Conflict of Interest
Dr. Nguyen has served as a consultant for Schering Plough, Canada and Abbott Pharmaceutical, neither of whom had any involvement in this study. The other authors report no conflicts of interest.
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Anand, N., Chong, C.A., Chong, R.Y. et al. Impact of Diabetes on Postoperative Outcomes Following Colon Cancer Surgery. J GEN INTERN MED 25, 809–813 (2010). https://doi.org/10.1007/s11606-010-1336-7
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DOI: https://doi.org/10.1007/s11606-010-1336-7