Researchers at University of California San Diego School of Medicine report pancreatic cancer rates are highest in countries with the least amount of sunlight. Low sunlight levels were due to a combination of heavy cloud cover and high latitude.
Researchers studied data from 107 countries, taking into account international differences and possible confounders, such as alcohol consumption, obesity and smoking. “While these other factors also contribute to risk, the strong inverse association with cloud-cover adjusted sunlight persisted even after they were accounted for,” said Garland.
Link to research: Cedric F. Garland, et al., Cloud cover-adjusted ultraviolet B irradiance and pancreatic cancer incidence in 172 countries. The Journal of Steroid Biochemistry and Molecular Biology, 2015;