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Table 1 Patient, tumour and treatment characteristics for all patients

From: Spinal radiosurgery - efficacy and safety after prior conventional radiotherapy

Characteristic Value
Median age (years), (range) 56, (17-82)
No of patients 54
Sex   
   Male 32
   Female 22
Karnofsky performance status scale   
   Median 80
   Range 50-100
Spinal region/No. of treated lesions   (%)
   Total of lesions in 54 patients 70 (100)
   Patients with 1 lesion 43  
   Patients with 2-6 lesions 11  
   Cervical 8 (11.4)
   Thoracic 28 (40.0)
   Lumbar 27 (38.6)
   Sacral 7 (10.0)
   Total of treatment sessions 60  
   No. of treated lesions/treatment sessions   
   1 42  
   2 9  
   3 2  
   4 1  
Histology n (%)
   Primary tumours 13 (24.1)
Sarcoma 5 (9.3)
CNS 3 (5.6)
Chordoma 3 (5.6)
Others 2 (3.7)
   Metastases 41 (75.9)
Renal 10 (18.5)
Lung 7 (13)
Breast 7 (13)
Prostate 3 (5.6)
Colorectal 2 (3.7)
Gynaecological 2 (3.7)
Melanoma 1 (1.8)
Others 7 (13)
Time diagnose to SRS (years)   
   Median 4.6
   Mean 6.7
   Range 0.6-29
   95% C.I. 2.4-6.4
Time RTX to SRS (months)   
   Median 15
   Mean 42
   Range 1-505
   95% C.I. 13.8-26.9
Tumour volume - GTV (cc)   
   Median 17.6
   Mean 26.3
   Range 0.2-134
   95% C.I. 12.2-26.2
  1. Abbreviations: SRS = spinal radiosurgery; RTX = conventional radiotherapy.