Despite decades of public health messaging, Canadians are spending more time in the sun and using less sun protection, raising alarms among researchers as melanoma cases continue to climb.
A McGill University-led study analyzed national survey data from over 77,000 people, representing a weighted sample of 21 million Canadians, between 2011 and 2018. Researchers found that 75% of adult Canadians reported spending at least 30 minutes in the sun on summer days off, with nearly half staying out for two hours or more. Most reported irregular or no use of sunscreen. One in three Canadians experienced a sunburn in the past year.
Young adults were much more likely to get sunburned and use tanning beds than older adults, and they were also less likely to wear protective clothing.
"This increasing sun exposure and decreasing protection is very concerning," said Dr. Ivan Litvinov, senior study author and Associate Professor of Dermatology at McGill. "Episodic sunburns, especially in childhood or adolescence, significantly increase the risk of melanoma later in life."
Litvinov points to cultural beauty standards, a sense of invincibility among youth, and potential cost barriers for sun protection as key factors driving these behaviors.
Melanoma, the deadliest form of skin cancer, rose by an estimated 17% in 2024 over the previous year, with approximately 11,000 new cases diagnosed across the country. Other forms of skin cancer are also becoming more common.
More information:
Amina Moustaqim-Barrette et al, Evaluating UV exposure and skin cancer prevention behaviours in Canada: a national population-based cross-sectional study, BMJ Public Health (2025). DOI: 10.1136/bmjph-2024-001983
Provided by McGill University
Citation:
Sun safety declining in Canada amid rise in skin cancer cases (2025, May 2). Retrieved 3 May 2025 from https://medicalxpress.com/news/2025-05-sun-safety-declining-canada-skin.html
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