Concurrent participation in breast, cervical, and colorectal cancer screening programmes in Denmark: A nationwide registry-based study.

"Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests. SHN: received a speaking fee from Norgine. BS: none declared. MT: is undertaking studies using HPV test kits and CINtec plus kits sponsored by 10.13039/100004337Roche, outside of the submitted work. MR: received funding from 10.13039/501100002141Public Health England for epidemiological analyses of various clinical study datasets; member of various expert committees advising the English Cervical Screening Programme; attended meetings with various human papillomavirus assay manufacturers; fee for lecture in the last four years from Hologic, paid to employer."

"Funding information SHN: The Health Research Fund of the Central Denmark Region (no. A1518). BS: none declared. MT: 10.13039/501100004836Independent Research Fund Denmark (grant no: 1057-00018B). MR: 10.13039/501100000289Cancer Research UK (reference: C8162/A27047). The funders had no role in designing the study; in the collection and analysis of the data; the writing of the manuscript; and the decision to submit."