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Table 2 Univariate and multivariate logistic regression model analyses of C5P in this study

From: Prediction of the risk of C5 palsy after posterior laminectomy and fusion with cervical myelopathy using a support vector machine: an analysis of 184 consecutive patients

Variable

Univariable logistic regression analysis

Multivariable logistic regression analysis

Odds ratio 95% confidence interval P value

Odds ratio 95% confidence interval P value

 

Lower

Upper

  

Lower

Upper

 

Age (years, %)

0.992

0.956

1.029

0.688

    

Sex (%)

1.483

0.642

3.573

0.363

    

History of hypertension (%)

0.902

0.284

2.411

0.847

    

DM (%)

1.731

0.687

4.136

0.226

    

History of smoking (%)

1.742

0.533

4.888

0.317

    

BMI (kg/m2, %)

0.973

0.899

1.047

0.471

    

Electromyogram abnormal (%)

5.747

2.302

16.46

0.000399 ***

7.861

2.139

19.546

0.003674 **

Pathological reflexes (%)

1.569

0.957

2.577

0.0725

    

Preoperative JOA score

0.718

0.620

0.798

0.07

    

Postoperative JOA score

1.070

0.926

1.239

0.3636

    

JOA recovery rate

1.371

1.168

1.637

0.000221 ***

1.412

1.111

1.879

0.008841 **

Preoperative CCI

1.400

1.124

1.776

0.00372 **

1.289

0.916

1.934

0.175568

Postoperative CCI

1.150

1.009

1.316

0.0375 *

1.138

0.935

1.399

0.199295

CCI Change

1.205

0.953

1.533

0.122

    

Preoperative C2-7 SVA (mm)

1.021

0.972

1.074

0.406561

    

Postoperative C2-7 SVA (mm)

1.043

0.974

1.117

0.218578

    

Modified Pavlov ratio

0.012

0.0075

0.024

2.57e-05 ***

0.021

0.009

0.034

0.028964 *

Presence of foraminal stenosis C4-C5 (%)

8.231

4.124

13.214

3.76e-08 ***

15.492

3.961

21.654

0.000236 ***

Number of levels decompressed

1.850

1.205

2.901

0.00564 **

1.525

0.808

3.006

0.201100

Number of fusion levels

2.864

1.250

6.895

0.015492 *

0.994

0.339

3.115

0.992097

  1. DM diabetes mellitus, BMI body mass index, JOA Japanese Orthopaedic Association, CCI cervical curvature index, SVA sagittal vertical axis