Heterogeneity in colorectal cancer incidence among people recommended 3-yearly surveillance post-polypectomy: a validation study.

"Competing interests The authors declare that they have no conflicts of interest."

"The IA study was funded by the UK National Institute for Health Research Health (NIHR) Health Technology Assessment (HTA) Programme (reference 04/33/01); the UKFSST by the UK Medical Research Council (MRC)-NIHR Efficacy and Mechanism Evaluation (EME) Programme (reference 09/800/08) and NIHR HTA Programme (reference 16/65/01); the ECP by the Department of Health in England; and the KPCP by The Permanente Medical Group, Inc. and the US National Cancer Institute (reference CA222035). The work of the CSPRG was previously supported by the Bobby Moore Fund for Cancer Research UK (reference C8171/A16894) and currently by the Cancer Research UK Population Research Committee Programme Award (reference C53889/A25004). Infrastructure support for this work was provided by the NIHR Imperial Biomedical Research Centre."