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Temporal trends in the incidence rates of keratinocyte carcinomas from 1978 to 2018 in Tasmania, Australia: a population‑based study

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Silva Ragaini, B, Blizzard, L ORCID: 0000-0002-9541-6943, Newman, L, Stokes, B, Albion, T and Venn, A ORCID: 0000-0001-7090-1398 2021 , 'Temporal trends in the incidence rates of keratinocyte carcinomas from 1978 to 2018 in Tasmania, Australia: a population‑based study' , Discover Oncology, vol. 12 , doi: 10.1007/s12672-021-00426-5.

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Abstract

Objectives:We described incidence trends of keratinocyte carcinomas (KCs)—namely basal cell carcinoma (BCC) and squamous cell carcinoma (SCC)—in the Australian state of Tasmania.Methods:We identified histologically confirmed KCs within the Tasmanian Cancer Registry (TCR) and conducted assessments to ensure data quality. Age-standardised incidence rates were calculated for first (1985–2018) and annual KCs (1978–2018). Average annual percentage changes were computed using Joinpoint regression models.Results:The TCR is a reliable source of KC data. A total of 83,536 people were registered with a KC between 1978 and 2018. Age-standardised incidence rates of first KCs increased on average by 3% per annum for BCCs and 4% per annum for SCCs, reaching 363/100,000 and 249/100,000 in 2018, respectively. Age-standardised incidence rates of annual KCs increased on average by 5% per annum for BCCs and 6% per annum for SCCs, up to 891/100,000 and 514/100,000 in 2018, respectively. This increase was steeper for females than males and highest during the late 1980s and early 1990s. A change in trend around 2014 suggested that incidence rates have started to decline.Conclusion:While the incidence of KCs in Tasmania increased substantially over 41 years, rates have recently plateaued and started to decline. The findings may reflect changes in sun exposure behaviours due to awareness campaigns, but high incidence rates in 2018 indicate that KCs still pose a substantial burden to this population.

Item Type: Article
Authors/Creators:Silva Ragaini, B and Blizzard, L and Newman, L and Stokes, B and Albion, T and Venn, A
Keywords: keratinocyte carcinoma, basal cell carcinoma, squamous cell carcinoma, non-melanoma skin cancer, incidence
Journal or Publication Title: Discover Oncology
Publisher: Springer New York LLC
ISSN: 1868-8497
DOI / ID Number: 10.1007/s12672-021-00426-5
Copyright Information:

© The Author(s) 2021. This article is licensed under a Creative Commons Attribution 4.0 International 4.0 International (CC BY 4.0) License (http://creativecommons.org/licenses/by/4.0/), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.

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