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PostScript
Letter
Kaplan–Meier failure estimate for metachronous colorectal cancer risk is clinically relevant
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Renehan1 argues that we inappropriately used the Kaplan–Meier method to estimate the risk of metachronous colorectal cancer, and instead recommends a competing risk analysis.2 While we agree that a competing risk analysis is a valid technique, we claim that the Kaplan–Meier estimate is also valid, and in this setting more appropriate.
We have reported the cumulative risk of metachronous colorectal cancer following segmental surgery for a first colon cancer for carriers of mutations in mismatch repair genes.3 Using …
Footnotes
Competing interests None.
Provenance and peer review Not commissioned; internally peer reviewed.