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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.