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Table 1 General characteristics of 23 patients included in the study.

From: Impairment of intellectual functions after surgery and posterior fossa irradiation in children with ependymoma is related to age and neurologic complications

Age at diagnosis 0.3 – 14.2 y (median 7.2)
Male gender 17
Pts under 5 y at diagnosis 10
Pts under 5 y at irradiation 8
Preradiation chemotherapy 4
Hydrocephalus at presentation 16
Gross total resection at 1st surgery 18
Second surgery 4
Radiation therapy dose 50–62 Gy
Opposite lateral beams 12
Conformal irradiation 11
Postoperative cerebellar mutism 0
Postoperative cerebellar syndrome 15
Severe 3
Moderate 7
Mild 5
Cerebellar syndrome at last IQ evaluation 6
Severe 2
Moderate 2
Mild 2
Interval between RT and last IQ evaluation 1–15.5 y (median 4.5)
Age at last IQ evaluation 4.5–19.6 y (median 13.2)
  1. RT = Radiotherapy.
  2. IQ = Intellectual Quotient.
  3. Pts = Patients.
  4. Gy = Gray.
  5. y = years.