CXCL8 and neuroblastoma: Survival analysis using the Kaplan–Meier method showed that the polymorphisms rs1800795 IL-6 and rs4073 IL-8 affect the overall survival (OS) of patients with NB (Figure 2a,b) However, the IL-8 SNP rs2227306 does not show any effect on the survival of these patients (Figure 2c).