Three positive predictive factors associated with the duration of treatment in the PICU > 1 day: tumor location group 2 including suprapituitary tumor, pineal gland tumor, and thalamus tumor (OR = 4.2, 95% CI: 1.07 - 16.77, p = 0.04), electrolyte disturbances (OR = 3.3, 95% CI: 1.20 - 9.27, p = 0.02) and estimated blood loss (OR = 1.09, 95% CI: 1.00 - 1.18, p = 0.04).