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Table 1 Pretreatment characteristics of the 88 patients with large brain metastases in critical areas

From: Optimal hypofractionated conformal radiotherapy for large brain metastases in patients with high risk factors: a single-institutional prospective study

Number of patients 88 Location of tumor 92 lesions
Median age (range) 64 (33–93) Cerebral hemisphere 61
Age ≥65 42 Frontal 27
Age <65 46 Parietal 10
Sex   Temporal 13
Male 42 Occipital 21
Female 46 Thalamus, basal ganglia 4
Primary cancer   Cerebellum 17
Lung 41 Median KPS score 70 (50–100)
Breast 23 KPS ≥70 54
Gastro-intestinal tract 9 KPS <70 34
Ovary 4 Tumor volume, median (cm3) 16.2
Kidney 3 ≥ 30.0 13
Thyroid 2 20.0-29.9 18
Larynx 2 10.0-19.9 61
Uterus 2 Image follow-up period (months)  
Others 6 Median 7
Multiple vs single   Range 1-37
Multiple metastases 45 Survival period (months)  
Single metastases 43 Median 9
Metastases to other organs 50 Range 3-41