They found no single association but investigated the interaction between the leptin (rs7799039) and the IL-6 (rs1800795) genetic polymorphisms and concluded that the OR of the AA-(Lep)-CC-(IL6) double homozygote genotype combination was found to be significantly elevated in patients with AIS (p = 0.027; OR = 4.67; CI: 1.24–17.60). Here, IL6 is linked to androgen insensitivity syndrome.