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Table 4 Logistic regression analysis for screw misplacement

From: Lumbosacral pedicle screw placement using a fluoroscopic pedicle axis view and a cannulated tapping device

  Odds ratio 95 % confidence interval p value
Age 1.006 (0.967–1.047) 0.77
Male/female 0.942 (0.425–2.516) 0.94
Obesity (BMI ≥ or <25)* 3.593 (1.061–12.175) 0.040
Single-level/multi-level 3.683 (0.664–20.418) 0.14
No. of vertebrae 0.43 (0.150–1.254) 0.12
Disease    
 Isthmic spondylolisthesis 1.000   
 Degenerative spondylolisthesis 0.419 (0.101–1.729) 0.23
 Spinal canal stenosis 0.292 (0.071–1.200) 0.088
 Degenerative scoliosis* 8.893 (1.200–76.220) 0.046
 Vertebral fracture 0.875 (0.123–6.239) 0.89
  1. BMI body mass index, No. number
  2. *p < 0.05