A new study published in Cancer Epidemiology, Biomarkers & Prevention concluded that young people diagnosed with non melanoma skin cancer (NMSC) related to sun exposure, under the age of 25, have a higher risk of developing melanoma and other cancers later in life.
The researchers collected hospital admissions and death rates from the All England Record-linked Hospital from 1999 to 2011 and constructed two cohorts: one cohort of over 602,000 people with a history of non-melanoma skin cancer (NMSC), and another of almost 8,800,000 people that acted as controls. Participants were followed electronically for five or six years, and over 87,000 from the NMSC cohort and over 863,000 from the control cohort subsequently developed cancer. The researchers found that for those who had NMSC, the relative risk of developing cancers of the bladder, brain,breast, colon, liver, lung, pancreas, prostate, and stomach was consistently elevated for the entire period \of the study, and the risk of cancers of the brain, colon and prostate increased with time. They also found that those who had NMSC under 25 years of age were 53 times more likely to get bone cancer, 26 times more likely to get blood cancer, and 20 times more likely to get brain cancer, and 14 times more likely to get any cancer excluding those of the skin,. They said “The risk increases for a large group of seemingly unrelated cancers: however,. the greatest risk related to other cancers induced by sunlight,m such as melanoma. ”
They also found the risk of developing any cancer subsequent to NMSC decreased significantly with increasing age: 23 times higher risk for those under age 25, 3.52 for those 25 to 44, 1.74 for those age 45 to 59. and 1.32 for those over age 60.