From the Research
Squamous Cell Carcinomas (SCCs) account for approximately 20% of all non-melanoma skin cancers in Australia, as reported in the most recent study 1. This percentage is crucial in understanding the burden of skin cancer in Australia, which has one of the highest rates of skin cancer in the world due to its high UV radiation levels, fair-skinned population, and outdoor lifestyle. The development of SCCs is primarily caused by cumulative sun exposure over many years, which is why they often appear on sun-exposed areas like the face, ears, neck, and backs of hands. Key factors that increase the risk of developing SCCs include fair skin, outdoor occupations, history of sunburns, and age over 50 years. It's also important to note that while SCCs are less common than Basal Cell Carcinomas (BCCs), they are more likely to spread if left untreated, making early detection and treatment critical. Previous studies have provided varying estimates of SCC incidence, but the most recent and highest quality study 1 provides the most accurate and up-to-date information on the percentage of skin cancers in Australia that are SCCs. Other studies, such as 2, 3, 4, and 5, offer additional insights into the epidemiology and risk factors of skin cancer in Australia, but the study by 1 is the most relevant and reliable source for determining the percentage of SCCs among skin cancers in Australia. Therefore, prioritizing the most recent and highest quality evidence, the percentage of skin cancers in Australia that are SCCs is approximately 20%.