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Table 1 Patients’ baseline characteristics (N = 260)

From: Does time-to-surgery affect mortality in patients with acute osteoporotic vertebral compression fractures?

  Survived Deceaseda p Total
N 233 27   260
Age [y] 78, SD 7 77, SD 7 .566b 78, SD 7
Gender [f: m]     172: 88
ASA    .008c  
 1 3 0   3
 2 81 1   82
 3 148 26   174
 4 1 0   1
OF classification    .418c  
 1 4 0   4
 2 75 5   80
 3 122 17   139
 4 32 5   37
Type of surgery    .412c  
 Kyphoplasty 55 6   61
 CPPPSF+Kypho 130 14   144
 Open posterior fixation 48 7   55
  1. awithin 1 year after surgery
  2. bStudent’s T-test
  3. cPearson Chi-square/Fisher’s test
  4. ASA ASA - American Society of Anaesthesiologists Scale, OF classification Osteoporotic Fracture classification, CPPPSF + Kypho cemented percutaneous posterior pedicle screw fixation with kyphoplasty of the fractured vertebra