Daffodil Centre, The University of Sydney, a Joint Venture with Cancer Council NSW, Sydney, Australia; Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia
Megan A Smith
Daffodil Centre, The University of Sydney, a Joint Venture with Cancer Council NSW, Sydney, Australia
Eleonora Feletto
Daffodil Centre, The University of Sydney, a Joint Venture with Cancer Council NSW, Sydney, Australia
Daffodil Centre, The University of Sydney, a Joint Venture with Cancer Council NSW, Sydney, Australia; Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia
Kate Broun
Prevention Division, Cancer Council Victoria, Melbourne, Australia
Sabine Deij
Daffodil Centre, The University of Sydney, a Joint Venture with Cancer Council NSW, Sydney, Australia; Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia
Paul Grogan
Daffodil Centre, The University of Sydney, a Joint Venture with Cancer Council NSW, Sydney, Australia
Michaela Hall
Daffodil Centre, The University of Sydney, a Joint Venture with Cancer Council NSW, Sydney, Australia
Emily He
Daffodil Centre, The University of Sydney, a Joint Venture with Cancer Council NSW, Sydney, Australia
D James St John
Prevention Division, Cancer Council Victoria, Melbourne, Australia; Department of Medicine, The Royal Melbourne Hospital, University of Melbourne, Melbourne, Australia
Daffodil Centre, The University of Sydney, a Joint Venture with Cancer Council NSW, Sydney, Australia
Pietro Procopio
Daffodil Centre, The University of Sydney, a Joint Venture with Cancer Council NSW, Sydney, Australia; Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia
Kate T Simms
Daffodil Centre, The University of Sydney, a Joint Venture with Cancer Council NSW, Sydney, Australia
Daffodil Centre, The University of Sydney, a Joint Venture with Cancer Council NSW, Sydney, Australia
G Bruce Mann
Breast Service, The Royal Women's and Royal Melbourne Hospital, Melbourne, Australia; Department of Surgery, University of Melbourne, Melbourne, Australia
Karen Canfell
Daffodil Centre, The University of Sydney, a Joint Venture with Cancer Council NSW, Sydney, Australia
Australia introduced COVID-19 infection prevention and control measures in early 2020. To help prepare health services, the Australian Government Department of Health commissioned a modelled evaluation of the impact of disruptions to population breast, bowel, and cervical cancer screening programmes on cancer outcomes and cancer services. We used the Policy1 modelling platforms to predict outcomes for potential disruptions to cancer screening participation, covering periods of 3, 6, 9, and 12 mo. We estimated missed screens, clinical outcomes (cancer incidence, tumour staging), and various diagnostic service impacts. We found that a 12-mo screening disruption would reduce breast cancer diagnoses (9.3% population-level reduction over 2020–2021) and colorectal cancer (up to 12.1% reduction over 2020–21), and increase cervical cancer diagnoses (up to 3.6% over 2020–2022), with upstaging expected for these cancer types (2, 1.4, and 6.8% for breast, cervical, and colorectal cancers, respectively). Findings for 6–12-mo disruption scenarios illustrate that maintaining screening participation is critical to preventing an increase in the burden of cancer at a population level. We provide programme-specific insights into which outcomes are expected to change, when changes are likely to become apparent, and likely downstream impacts. This evaluation provided evidence to guide decision-making for screening programmes and emphasises the ongoing benefits of maintaining screening in the face of potential future disruptions.
