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Title: Trends of cutaneous basal cell carcinoma, squamous cell carcinoma, and melanoma among the Chinese, Malays, and Indians in Singapore from 1968-2016
Authors: Oh, Choon Chiat 
Jin, Aizhen 
Koh, Woon-Puay 
Keywords: basal cell carcinoma
squamous cell carcinoma
Issue Date: 1-Sep-2021
Publisher: Elsevier Inc.
Citation: Oh, Choon Chiat, Jin, Aizhen, Koh, Woon-Puay (2021-09-01). Trends of cutaneous basal cell carcinoma, squamous cell carcinoma, and melanoma among the Chinese, Malays, and Indians in Singapore from 1968-2016. JAAD International 4 : 39-45. ScholarBank@NUS Repository.
Rights: Attribution-NonCommercial-NoDerivatives 4.0 International
Abstract: Background: Previous analysis showed that the incidence rates of skin cancer in Singapore increased from 1968 to 2006, especially among older Chinese, and particularly for basal cell carcinoma (BCC). Objective: We updated the skin cancer incidence rates and time trends among the Chinese, Malays, and Indians in Singapore. Methods: We analyzed the skin cancer incidence from the nationwide Singapore Cancer Registry from 1968 to 2016. Results: Among 12,692 cases diagnosed from 1968 to 2016, there were 8367 (65.9%) cases of BCC, 3598 (28.3%) of squamous cell carcinoma (SCC), and 727 (5.8%) of melanoma. The mean ages at skin cancer diagnosis were 72.7 years for SCC, 66.9 years for BCC, and 59.8 years for melanoma. Sun-exposed areas accounted for 81.3% of BCCs, 61.6% of SCCs, and 26.7% of melanomas. The age-standardized incidence rate of cutaneous BCC was highest in the Chinese and increased by 2.5 fold over the study period, followed by a lower rate and slower increase in the Malays, and the lowest rate among the Indians. The SCC and melanoma incidences remained low in all 3 ethnicities during this study period. The Chinese had the highest relative risk for developing any skin cancer (P < .0001) compared with those of the Malays and Indians. Most cases of skin cancer were diagnosed at age ?60, with men showing a higher incidence of SCC compared with that of women. Conclusion: Incidence rates of BCC have increased in Singapore, especially among the Chinese, in the past 5 decades. The SCC and melanoma incidence rates remained low and stable. © 2021 American Academy of Dermatology, Inc.
Source Title: JAAD International
ISSN: 2666-3287
DOI: 10.1016/j.jdin.2021.05.006
Rights: Attribution-NonCommercial-NoDerivatives 4.0 International
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