Sunburn Prevalence is Underestimated in UK-Based People of African Ancestry.

Background: Eumelanin, the primary pigment in human epidermis, has a well-established photo-protective role. It can confer a protection factor of up to approximately 13.4 in some individuals. However, the protection eumelanin affords is not absolute and, further, the susceptibility of human skin to the harmful effects of UV radiation is more complex than skin pigmentation alone.

Objective: Our survey explored the lifetime prevalence of sunburn in people of African Ancestry based in the UK (Black African or Black Caribbean).

Results: A significant number of respondents, 52.2% (n=222), reported a history of sunburn. Interestingly, there was a significant increase in frequency of sunburn in those with a lighter skin tone (self-classified from dark, medium and light - 47.3%, 53.5% and 71.4%, respectively). In total 69% reported that the episode of sunburn occurred when they were not using sunscreen, and another 10% could not recall whether sunscreen was used. A large proportion of respondents (59%) indicated that they had been sunburnt while away from the UK in hot/sunny climates, raising the question of whether intermittent sun exposure at high UV indices is a key factor in sunburn risk for those living in temperate climates.

Conclusion: Our findings do not support the hypothesis of a simplistic relationship between skin colour and sun sensitivity and encourage us to re-examine this relationship and its implications for public health promotion. It also adds to a body of evidence revealing the need for more up-to-date and appropriate systems to assess the risk UV radiation poses to diverse populations.