Correction to: British Journal of Cancer https://doi.org/10.1038/s41416-020-0935-2, published online 17 June 2021

The original version of this article unfortunately contained a mistake in Table 3. Since the publication of the article the authors found a mistake in the label of one of the variables in Table 3. This mismatch results in incorrect listing of numbers and percentages. The correct table can be found below. The authors apologise for the mistake. The original article has been corrected.

Table 3 Details of primary outcome.