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Table 4 Multivariate logistic regression model of risk factors for over-N-staging and under-N-staging in rectal cancer

From: Risk factor analysis for inaccurate pre-operative MRI staging in rectal cancer

Characteristics

Over-N-staging

Under-N-staging

OR

95% CI

P Value

OR

95% CI

P Value

CEA

1.012

1–1.024

0.06

1.002

0.988–1.015

0.792

CA199

0.996

0.99–1.001

0.147

1

0.998–1.002

0.847

BMI

0.953

0.88–1.031

0.232

1.063

1–1.129

0.05

WBC

1.174

1.007–1.368

0.041

1.038

0.888–1.214

0.641

HB

0.993

0.977–1.009

0.383

0.993

0.978–1.009

0.411

PLT

1

0.996–1.003

0.838

1.002

0.998–1.006

0.33

ALB

1.002

0.953–1.053

0.953

1.027

0.976–1.082

0.306

Tumor Location

  

0.738

  

0.875

 Upper

1.216

0.629–2.351

0.56

1.157

0.613–2.184

0.653

 Middle

1.322

0.638–2.739

0.453

1.002

0.493–2.036

0.995

 Low

1

  

1

  

Histological Subtype

  

0.285

  

< 0.001

 Classic adenocarcinoma

1

  

1

  

 Mucinous adenocarcinoma

0.533

0.168–1.686

 

4.049

1.876–8.772

 

Tumor Size

1.434

1.223–1.680

< 0.001

0.953

0.806–1.126

0.572

Bowel Obstruction

  

< 0.001

  

0.596

 No

1

  

1

  

 Yes

3.494

1.797–6.794

 

1.243

0.556–2.776

 
  1. Abbreviations: CEA carcinoembryonic antigen, BMI body mass index, WBC white blood cell, HB hemoglobin, PLT plate, ALB albumin
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