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Table 4 The risk factors for any reoperation within 1 year after robot-assisted lumbar fusion based on multivariate logistic regression

From: Do robot-related complications influence 1 year reoperations and other clinical outcomes after robot-assisted lumbar arthrodesis? A multicenter assessment of 320 patients

Risk factors Adjusted odds ratio 95% Confidence interval P value
Patient
 Female 1.9 0.4 8.6 0.424
 Obese 12.2 1.3 116 0.029
 CCI 1.2 0.6 2.3 0.578
 Smoker <0.01 <0.01 >999  
Preoperative diagnosis (reference = degenerative disk disease)
 Degenerative scoliosis 6.8 0.4 124 0.916
 High-grade spondylolisthesis 1.4 0.14 13.3 0.949
 Pseudarthrosis <0.01 <0.01 >999  
 Spinal stenosis 0.2 0 26.2 0.991
 Other <0.01 <0.01 >999  
Robot operative factors
 Open vs. percutaneous 0.2 0.01 6.1 0.347
 Total number of robot screws 1.2 0.7 2.2 0.556
 Robot time/screw (minutes/screw) 0.9 0.7 1.2 0.393
Other operative factors
 Prior spine surgery 1.3 0.1 14.4 0.856
 Total instrumented levels 0.5 0.1 2.7 0.419
 Pelvic fixation 153 1.1 >999 0.045
 Total operative time 1 1 1 0.903
 Estimated blood loss 1 1 1 0.908
LOS 1.2 0.8 1.8 0.477
Any robot-related complication <0.01 <0.01 >999