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Table 1 Patient characteristics

From: Clinical outcome after particle therapy for meningiomas of the skull base: toxicity and local control in patients treated with active rasterscanning

Patient characteristics n= Percent
Gender
 male 22 20.0%
 female 88 80.0%
Age at radiotherapy
 Mean (SD) 53 11.7
 Median (Q1-Q3) 52 29–85
 Median (range) 52 45–59
Histology
 WHO I 60 54.5%
 WHO II 7 6.4%
 WHO III 1 0.9%
 unknown 42 38.2%
Location
 sphenoid wing 42 38.2%
 petroclival 23 20.9%
 sphenoorbital 13 11.8%
 supra- and/or parasellar region 10 9.1%
 sinus cavernosus 4 3.6%
 olfactory 4 3.6%
 tentorial fold 3 2.7%
 petrosal 5 4.5%
 cerebello-pontine angle 3 2.7%
 foramen magnum 3 2.7%
Karnofsky performance score
  ≥ 80% 101 91.8%
  < 80% 9 8.2%
Previous surgery
 partial resection 62 56.4%
 no surgery 32 29.1%
 unknown 9 8.2%
 biopsy 4 3.6%
 complete resection 3 2.7%
treatment setting
 due to tumor progression 51 46.4%
 definite 42 38.2%
 adjuvant / additive 17 15.5%
Particle therapy
 protons 104 94.5%
 carbon ions 6 5.5%