Modifying effect of skin complexion on adjusted odds ratios between occupational exposure to ultraviolet radiation (UVR) and non-melanoma skin cancer (NMSC).

aTotal number of participants varies due to missing data for some covariates; bAdjusted odds ratios (95% CI) for sex, age, county of residence, family history of cancer, skin complexion, and lifetime average arsenic concentration in drinking water; cAny UVR consists of natural UV, artificial UV, and both (results omitted due to scarce data); associations were estimated in two separate multivariable logistic regression models; dCumulative lifetime exposure is not showed for artificial UVR because of small numbers per strata; *Significance of the Wald Chi-Square test for interaction at p<0.10.