Table 4: Pearson correlation coefficient between physical measurements and total small bowel length.

Pearson correlation coefficient p-value
Thickness
Abdominal wall thickness 0.25 0.07
Circumference
At xiphoid-sternal angle 0.34 0.0003
At subcostal line 0.39 < 0.0001
At umbilicus 0.33 0.0005
At iliac crest 0.26 0.007
At crico-jugular notch 0.26 0.007
Length
Cricoid to sternal angle 0.22 0.02
Cricoid to xiphoid 0.35 0.0002
Cricoid to umbilicus 0.29 0.002
Cricoid to pubic tubercle 0.41 < 0.0001