Fig. 1.

Schematic diagram of our analysis. a The segmental chromosome copy number variation data of neuroblastoma patients was used to map to the chromosome band copy number variation, and the frequency of chromosome band gain/loss was obtained. We selected chromosome bands with a gain/loss frequency > 15% as the frequent gain/loss chromosome bands. b The neuroblastoma patient gene expression profiles were used to calculate the inferred copy number variation (iCNV) of each chromosome band. c A Cox proportional hazard model was used to measure the correlation between frequent gain/loss chromosome band iCNVs and patient survival time