Having two GC haploytypes, which is associated with higher IL10 expression than the AT allele [20], was associated with increased ORs of BCC and SCC (ORBCC = 1.5, 95% CI 1.1–1.9; ORSCC = 1.4, 95% CI 1.0–1.9), although the association with SCC was of borderline significance. This evidence concerns the gene IL10 and skin basal cell carcinoma.