IL6 and ovarian cancer: Moreover, statistically significant association of the IL-6 -174G>C CC genotype (OR= 3.162, 95% CI: 1.094-9.141, p=0.034) and C allele (OR = 1.724; 95%CI: 1.129-2.633, p=0.012) with the increased risk of ovarian cancer was found.