CTLA4 and vitiligo: The comparison of CTLA4 +49A/G (rs231775) and CT60 (rs3087243) genotypes and/or allele frequencies among the cohort of cases and control subjects, revealed that the heterozygous AG genotype (rs231775 and rs3087243) had a greater frequency across the cohort; regardless, no clear correlation between the evaluated polymorphisms and risk of developing vitiligo could be observed (p > 0.05) (Table 3).