However, no significant association was observed between hepatoblastoma risk and the NRAS rs2273267 A > T polymorphism in children aged more than 17 months (adjusted OR = 1.42, 95% CI 0.68–2.96, P = 0.350) or younger (adjusted OR = 1.23, 95% CI 0.62–2.43, P = 0.556, Table 2). This evidence concerns the gene NRAS and hepatoblastoma.