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Table 1 Comparison of patient characteristics in the first admission between the two groups

From: Unplanned hospital readmission after surgical treatment for thoracic spinal stenosis: incidence and causative factors

  Study group Control group Statistics p
Age (years) 53.5 ± 9.6 52.6 ± 8.9 0.389 0.699
Sex (Male/Female) 10/11 30/33 - -
BMI (kg/m2) 27.6 ± 2.7 28.0 ± 4.0 -0.436 0.664
Diagnosis
  OPLL + OFL 9 (42.9 %) 9 (14.3 %)   
  OFL 9 (42.9 %) 38 (60.3 %)   
  OPLL 2 (9.5 %) 12 (19.0 %)   
  TDH 1 (4.7 %) 4 (6.3 %) 4.317 0.038
Number of levels involved
  Less than 3 levels 7 25   
  3 or more levels 14 38 0.269 0.604
Comorbidity
  Hypertension 4 11   
  Diabetes 3 6   
  Cardiovascular disease 1 2   
Total 9 19 1.143 0.285