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Table 4 Patient characteristics of the test group and the validation group. The p-values were obtained from the Chi-square test

From: A validated survival score for patients with metastatic spinal cord compression from non-small cell lung cancer

  Test group Validation group p-value
  n patients (%) n patients (%)  
Age    
 ≤ 64 years 97 (54) 94 (53)  
 ≥ 65 years 81 (46) 84 (47) 0.89
Gender    
 Female 47 (26) 45 (25)  
 Male 131 (74) 133 (75) 0.92
ECOG Performance status    
 1-2 67 (38) 66 (37)  
 3-4 111 (62) 112 (63) 0.96
Number of involved vertebrae    
 1-2 71 (40) 77 (43)  
 ≥ 3 107 (60) 101 (57) 0.73
Ambulatory status prior to RT    
 Not Ambulatory 84 (47) 78 (44)  
 Ambulatory before RT 94 (53) 100 (56) 0.73
Other bone metastases    
 No 67 (38) 76 (43)  
 Yes 111 (62) 102 (57) 0.58
Visceral metastases    
 No 61 (34) 56 (31)  
 Yes 117 (66) 122 (69) 0.81
Interval from cancer diagnosis to radiotherapy of MSCC    
 ≤ 15 months 148 (83) 150 (84)  
 > 15 months 30 (17) 28 (16) 0.92
Time developing motor deficits    
 1-7 days 74 (42) 73 (41)  
 > 7 days 104 (58) 105 (59) 0.95
Radiation regimen    
 Short-course radiotherapy 71 (40) 72 (40)  
 Longer-course radiotherapy 107 (60) 106 (60) 0.97