Postcolonoscopy colorectal cancer: in defence of quality

Abstract

We thank Spychalski et al. for their comments on our recent study evaluating factors associated with the development of post-colonoscopy colorectal cancer (PCCRC).1 In this study of 367 patients with confirmed PCCRC and 412 patients with confirmed detected colorectal cancer (CRC), we showed that patient age and tumour location were most strongly associated with PCCRC and that endoscopist-associated quality metrics that could be derived from an administrative dataset were not significantly associated with PCCRC.