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COVID-19 pandemic responses impacted behaviour and health services. We estimated the impact on incidence, stage and healthcare pathway to diagnosis for female breast, colorectal and non-small cell lung cancers at population level in Wales. Cancer e-record and hospital admission data linkage identified adult cases, stage and healthcare pathway to diagnosis (population ~2.5 million). Using multivariate Poisson regressions, we compared 2019 and 2020 counts and estimated incidence rate ratios (IRR). Cases decreased 15.2% (n = -1011) overall. Female breast annual IRR was 0.81 (95% CI: 0.76-0.86, p 

Original publication




Journal article


British journal of cancer

Publication Date



Public Health Wales, Welsh Cancer Intelligence & Surveillance Unit, Floor 5, Number 2 Capital Quarter, Tyndall Street, Cardiff, CF10 4BZ, UK.