TGFBR1 and skin basal cell carcinoma: On the other hand, the analysis of TGF-βR1 SNP genotype frequencies showed that rs334349AA genotype is significantly increased in SCC patients compared both to the BCC (recessive model OR 6.20, CI 95% 1.25–30.81, p = 0.022) and control group (recessive model OR 4.31, CI95% 1.32–14.08, p = 0.022).