The estimated relative risk of subsequent new tumors for low versus high CD3ε cells was 2.6 for subjects aged 50 at initial BCC removal (p = 0.01), but this hazard ratio declined to 1.8 (p = 0.04) for subjects aged 60 and 1.2 (p = 0.53) for subjects aged 70. This evidence concerns the gene CD3E and skin basal cell carcinoma.