Meta-Analysis Ties Severe Sunburns to 69% Higher Skin Cancer Odds, Tripling Childhood Risk
Updated
Updated · ScienceAlert · Aug 18
Meta-Analysis Ties Severe Sunburns to 69% Higher Skin Cancer Odds, Tripling Childhood Risk
2 articles · Updated · ScienceAlert · Aug 18
Summary
Seventeen studies covering more than 321,000 people found painful, blistering or severe sunburns were linked to higher odds of cutaneous squamous cell carcinoma, with childhood burns showing the strongest association.
Medium lifetime frequencies of severe sunburns were tied to 51% higher cSCC odds, while high frequencies were tied to 69% higher odds; frequent childhood burns were associated with up to three times the odds.
Researchers said UV radiation can leave lasting DNA damage in skin cells, and repair errors may accumulate into cancer-causing mutations over time.
The analysis adjusted data for factors such as age, sex, skin color and skin sensitivity where possible, but the evidence was rated low-certainty because many studies relied on people recalling burns from decades earlier.
The authors and outside dermatologists said the findings strengthen the case for preventing sunburns—especially in children and teens—through sunscreen, protective clothing, shade and avoiding intense midday sun.