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Mariko Niino, Tomohiro Matsuda, International comparison of skin cancers incidence by detailed sites, Japanese Journal of Clinical Oncology, Volume 49, Issue 12, December 2019, Pages 1176–1177, https://doi.org/10.1093/jjco/hyz185
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In order to compare the percentage of melanoma and other skin cancer between Japan and other countries, we abstracted the number of cancer incidence and age-standardized incidence rates (ASRs) from the Cancer Incidence in Five Continents Vol. XI (CI5) (1). The International Agency for Research on Cancer provides the CI5 databases on the incidence of cancer recorded by cancer registries (regional and national) worldwide. We used the numbers of incidence case and ASRs from the following cancer registries, the United States of America (USA), Beijing in China, Mumbai in India, Hiroshima and Osaka in Japan, the Republic of Korea, Gironde in France, Hamburg in Germany, the United Kingdom (UK) and Australia from the CI5-XI database. Year of cancer diagnosis were from 2008 to 2012. Melanoma skin and other skin cancer were coded as C43 and C44 based on ICD-10, respectively.
Figure 1 shows the distribution of melanoma and other skin cancer cases and ASRs in males and Figure 2 shows those in females. Most of the Western countries in this study, melanoma occupied majority of the proportion in skin cancer. The proportion of melanoma in Hamburg, Germany was 100% for both sex, those of Australia and USA were over 90% (95.2% and 92.4% in males, 96.0% and 92.3% in females) and in Gironde, France was about 80% (77.9% in males, 81.4% in females). Only UK among the studied Western countries, the proportion of melanoma was almost half of all skin cancer (45.5% in males, 52.6% in females). By contrast, in Beijing, China, Hiroshima and Osaka, Japan, Republic of Korea and Mumbai, India, the proportion of other skin cancer were much higher than melanoma (77.9 to 91.7% in males, 77.0 to 93.9% in females). Especially, Hiroshima and Osaka in Japan, the proportion of melanoma were about 10% or less in all skin cancer (8.3% and 9.3% in males, 6.1% and 10.8% in females). By sex comparison, the proportion of melanoma in females was slightly higher in almost all the observed registries except Hiroshima, Japan (8.3% in males, 6.1% in females).
