Finally, there was no significant difference between the two groups of patients in terms of frequencies in the KIR AA haplotype, G6PDH enzyme deficiency and OAS3 (rs1156361) polymorphism [62% A vs 65% S, OR = 1.1 (95% CI 0.8 – 1.7), P = 0.593]. This evidence concerns the gene OAS3 and hyperinsulinemic hypoglycemia, familial, 4.