Journal
ORAL ONCOLOGY
Volume 110, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.oraloncology.2020.104875
Keywords
Squamous cell carcinoma; Oral cavity; Asia; Incidence; Tongue
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Funding
- Sydney Head and Neck Cancer Institute, Chris O'Brien Lifehouse
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Purpose: Increasing evidence is accumulating for an alarming rising incidence of oral tongue SCC in a younger cohort, particularly in developed countries. The aim of this study is to analyse the change in incidence of OSCC in patients under the age of 45 in developed nations in the Asia-Pacific region. Patients and methods: Population data was extracted from the Australian Cancer Incidence and Mortality 2017 database and National Registry of Diseases Office, Singapore to allow calculation of the incidence in the Australian and Singaporean populations. This was compared to multi-institutional data from four tertiary Australian institutions. The inclusion criteria were as follows: a) diagnosis of primary SCC of the mobile tongue; b) treatment with curative intent; c) complete histopathologic data; d) complete adjuvant treatment data; e) follow up data. Results: Analysis of ACIM data demonstrated that there was a significant increase in the incidence of tongue SCC in those under the age of 45 in the Australian and Singaporean populations (p < 0.001). When analysed for gender, the incidence of tongue SCC increased at a significantly higher rate in females than males (p < 0.001). Similarly, in the multi-institutional analysis including 1814 patients, the number of females under the age of 45 with tongue SCC significantly increased over time (p < 0.001), with the proportion of smokers in this cohort decreasing over time. Conclusion: The incidence of tongue SCC is rising in young females in developed nations in the Asia Pacific region, in keeping with observed epidemiological trends worldwide.
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