Competing risks analysis of the association between perioperative blood transfusion and long-term outcomes after resection of colorectal cancer

O. F. Dent*, J. E. Ripley, C. Chan, M. J. F. X. Rickard, A. Keshava, P. Stewart, P. H. Chapuis

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Aim: Despite numerous reports over three decades, the association between perioperative blood transfusion and long-term outcomes after resection of colorectal cancer remains controversial. This cohort study used competing risks statistical methods to examine the association between transfusion and recurrence and colorectal cancer-specific death after potentially curative and noncurative resection. Method: A hospital database provided prospectively recorded clinical, operative and follow-up information. All surviving patients were followed for at least 5 years. Data were analysed by multivariable competing risks regression. Results: From 2575 patients in the period 1995–2010 inclusive, after exclusions, 2334 remained for analysis. Among 1941 who had a potentially curative resection and 393 who had a noncurative resection the transfusion rates were 24.9% and 33.6%, respectively. After potentially curative resection there was no significant bivariate association between transfusion and recurrence (HR 0.93, CI 0.74–1.16, P = 0.499) or between transfusion and colorectal cancer-specific death (HR 1.04, CI 0.82–1.33, P = 0.753). After noncurative resection there was no significant association between transfusion and cancer-specific death (HR 0.93, CI 0.73–1.19, P = 0.560). Multivariable models showed no material effect of potential confounder variables on these results. Conclusion: The competing risks findings in this study showed no significant association between perioperative transfusion and recurrence or colorectal cancer-specific death.

Original languageEnglish
Pages (from-to)871-884
Number of pages14
JournalColorectal Disease
Volume22
Issue number8
DOIs
Publication statusPublished - Aug 2020
Externally publishedYes

Keywords

  • blood transfusion
  • colorectal cancer
  • long-term outcomes
  • resection

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