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Table 1 Patient characteristics

From: The influence of orthopedic corsets on the incidence of pathological fractures in patients with spinal bone metastases after radiotherapy

   Corset group No corset group All
   n % n % n %
Age (mean, SD)   63.2 (+/− 11.4) 62.2 (+/−10.8) 62.7 (+/−11.1)
Gender male 236 53.4 253 53.5 489 53.4
  female 206 46.6 220 46.5 426 46.6
KPS <=70 204 46.2 218 46.1 422 46.1
  >70 238 53.8 255 53.9 493 53.9
Primary site NSCLC 101 22.9 206 43.5 425 46.5
  Breast 219 49.6 74 15.6 175 19.1
  Kidney 71 16.1 88 18.6 159 17.4
  Melanoma 15 3.4 26 5.5 41 4.5
  Prostate 4 0.9 13 2.8 17 1.9
  Other 51 11.5 105 22.2 98 10.6
Localization Thoracic 284 64.3 279 59.0 563 61.5
  Lumbar 158 35.7 194 41.0 352 38.5
Chemotherapy yes 242 54.7 260 55.1 502 54.9
  no 200 45.3 212 44.9 412 45.1
Stability before RT stable 140 31.7 320 67.7 460 50.3
  unstable 302 68.3 153 32.3 455 49.7
Stability after 3 months stable 152 39.8 279 79.0 449 59.2
  unstable 230 60.2 79 21.0 309 40.8
Stability after 6 months stable 165 45.1 311 85.2 476 65.1
  unstable 201 54.9 54 14.8 255 34.9
Bisphosphonates yes 351 79.4 296 62.6 647 70.7
  no 91 20.6 177 37.4 268 29.3
Distant metastases Brain 50 11.3 77 16.3 127 13.9
  Lung 74 16.7 118 25.0 192 21.0
  Liver 70 15.8 116 24.5 186 20.3
  Skin 11 2.5 25 5.3 36 3.9
Number of metastases solitary 189 42.8 228 48.2 417 45.6
  multiple 253 57.2 245 51.8 498 54.4
  1. SD Standard deviation; KPS Karnofsky performance score; RT Radiotherapy