Nationwide Trends in the Incidence of Melanoma and Non-melanoma Skin Cancers from 1999 to 2014 in South Korea.

Purpose This descriptive study was aimed to examine trends in the incidence of melanoma and non-melanoma in South Korea. Materials and Methods The nationwide incidence data for melanoma and non-melanoma skin cancer was obtained from the Korea Central Cancer Registry. Age-standardized rates were calculated and analyzed, using a joinpoint regression model. Results The incidence of basal cell carcinoma has increased dramatically both in men (average annual percentage change [AAPC]: 8.0 [95% CI: 6.0 to 10.1]) and women (AAPC: 9.0 [95% CI: 7.5 to 10.4]). Squamous cell carcinoma has also steadily increased both in men (AAPC: 3.3 [95% CI: 2.6 to 4.0]) and women (AAPC: 6.8 [95% CI: 5.3 to 8.4]). Cutaneous melanoma increased continuously from 1999 to 2014 in women (AAPC: 3.5 [95% CI: 2.4 to 4.6]), whilst rapidly increasing in men until 2005 (APC: 7.9 [95% CI: 2.4 to 13.7]) after which no increase has been observed (APC: -0.2 [95% CI: -2.3 to 2.0]). Conclusion The incidence rates of melanoma and non-melanoma skin cancer have increased over the past years, with the exception of melanoma in men. Further studies are required to investigate the reasons for the increased incidence of these skin cancers in South Korea.