Head and neck cancers are the fifth most common malignancy worldwide, accounting for an estimated 984,430 cases in 2012.1 Head and neck cancers are cancers arising in the lips, oral…
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Oral cancer is a significant health issue with high morbidity and mortality rates. With late diagnosis, approximately half of the affected patients die of the disease within five years. Certain factors, particularly alcohol and tobacco consumption, place individuals at a higher risk of getting oral cancer. In New Zealand, four out of five individuals consume alcohol and approximately two out of five use tobacco, which places them at higher risk of developing oral cancer. We have provided an overview of these and other oral cancer risk factors and their prevalence in New Zealand. We hope that this will further encourage doctors and dentists to provide regular advice regarding tobacco cessation and judicious alcohol use.
Oral cancer constitutes the majority of head and neck cancers, which are the fifth most common malignancy worldwide, accounting for an estimated 984,430 cases in 2012. Between 2000 and 2010, there were 1,916 cases of OSCC in New Zealand with a male to female ratio of 1.85:1, and an age-standardised incidence rate of 42 persons per 1,000,000 population.
This article presents an overview of the main risk factors for oral and oropharyngeal cancers and their prevalence in New Zealand. Alcohol consumption is the most prevalent risk factor in New Zealand, followed by tobacco. Given the high prevalence of these two risk factors and their synergistic effect, it is important for doctors and dentists to encourage smoking cessation in smokers and to recommend judicious alcohol intake. Research is needed to determine the prevalence of use of oral preparations of tobacco and water-pipe smoking in New Zealand, especially due to changing demography and increases in migrant populations. UV radiation is also an important risk factor. Further investigations are also needed to determine the prevalence of oral and oropharyngeal cancers attributable to oncogenic HPV infection.