Multivariate Cox regression analysis of factors associated with Overall Survival in patients with OPG.

* The candidate risk factors were: age at diagnosis (< 1 year), sex, intracranial hypertension at diagnosis, diencephalic syndrome, NF1 status, and subsequent treatment (chemotherapy, radiotherapy and initial partial surgery). Interaction terms used: gender with age at diagnosis, gender with NF1 status, gender with DS at diagnosis. Multivariate Cox regression analysis of factors associated with Overall Survival in patients with OPG.