Link to study: https://pmc.ncbi.nlm.nih.gov/articles/PMC12700204/

Although I think the more interesting question is whether sunbed use increases or decreases overall mortality. The only study I can find is Lindqvist's:

https://onlinelibrary.wiley.com/doi/pdf/10.1111/joim.12251?g...

Overall, sunbed use reduced the all-cause mortality by a ratio of 0.77 or 0.87 depending on the model used. It increased the risk of developing MM, and the risk of dying from MM, although all-cause mortality was not increased even in patients diagnosed with MM. (This seems to be because there is a very low overall risk of MM mortality, but UV light exposure seems to provide a greater overall health benefit than the small risk of increased MM risk).