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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

CharacteristicsOver-N-stagingUnder-N-staging
OR95% CIP ValueOR95% CIP Value
CEA1.0121–1.0240.061.0020.988–1.0150.792
CA1990.9960.99–1.0010.14710.998–1.0020.847
BMI0.9530.88–1.0310.2321.0631–1.1290.05
WBC1.1741.007–1.3680.0411.0380.888–1.2140.641
HB0.9930.977–1.0090.3830.9930.978–1.0090.411
PLT10.996–1.0030.8381.0020.998–1.0060.33
ALB1.0020.953–1.0530.9531.0270.976–1.0820.306
Tumor Location  0.738  0.875
 Upper1.2160.629–2.3510.561.1570.613–2.1840.653
 Middle1.3220.638–2.7390.4531.0020.493–2.0360.995
 Low1  1  
Histological Subtype  0.285  < 0.001
 Classic adenocarcinoma1  1  
 Mucinous adenocarcinoma0.5330.168–1.686 4.0491.876–8.772 
Tumor Size1.4341.223–1.680< 0.0010.9530.806–1.1260.572
Bowel Obstruction  < 0.001  0.596
 No1  1  
 Yes3.4941.797–6.794 1.2430.556–2.776 
  1. Abbreviations: CEA carcinoembryonic antigen, BMI body mass index, WBC white blood cell, HB hemoglobin, PLT plate, ALB albumin