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Table 3 The different influencing factors on kidney length pole to pole, cortical and parenchymal width in multivariate regression models

From: Normal kidney size and its influencing factors - a 64-slice MDCT study of 1.040 asymptomatic patients

Right side Factor β P value Step of entry
Kidney length (pole to pole) Height 0.35 <0.001 1
  BMI 0.22 <0.001 2
  Stenosis of renal arteries -0.15 <0.001 3
  Male gender 0.2 <0.001 4
  Cranial position 0.16 <0.001 5
  Ventral position -0.157 <0.001 6
  Absence of left kidney 0.102 <0.001 7
  Parapelvic cysts 0.09 = 0.001 8
Cortical width Male gender 0.123 <0.002 3
  Age -0.114 = 0.001 2
  BMI 0.105 = 0.002 1
  Caudal position -0.084 = 0.019 7
  Stenosis of renal arteries -0.074 = 0.024 5
  Absence of left kidney 0.71 = 0.021 4
  Parapelvic cysts -0.071 = 0.022 6
  Number of renal arteries 0.069 = 0.026 8
Parenchymal width Male gender 0.22 <0.001 1
  BMI 0.15 <0.001 3
  Height 0.12 <0.001 2
  Ventral position -0.1 = 0.005 4
  Parapelvic cysts -0.1 <0.001 5
  Caudal position -0.09 = 0.005 7
  Absence of the left kidney 0.084 = 0.004 6
  Age -0.73 = 0.026 8
Left side Factor β P value Step of entry
Kidney length (pole to pole) Height 0.34 <0.001 1
  BMI 0.19 <0.001 2
  Male gender 0.17 <0.001 5
  Ventral position -0.14 <0.001 6
  Cranial position 0.13 <0.001 7
  Absence of right kidney 0.1 <0.001 4
  Number of renal arteries 0.1 <0.001 3
  Stenoses of renal arteries -0.07 = 0.01 8
  Previous infarction -0.07 = 0.014 9
Cortical width BMI 0.152 <0.001 3
  Age -0.151 <0.001 2
  Male gender 0.142 <0.001 1
  Absence of the right kidney 0.079 = 0.012 4
Parenchymal width BMI 0.19 <0.001 1
  Height 0.17 <0.001 2
  Male gender 0.14 <0.001 3
  Age -0.14 <0.001 4
  Absence of the right kidney 0.11 <0.001 5
  Stenosis of a renal artery -0.09 = 0.003 6
  Constriction of the left renal vein in the aortomesenteric angle -0.08 = 0.012 7
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