Clinical value of computed tomography-based three-dimensional reconstruction of the pelvis and mesorectum in middle to low rectal carcinoma

Table 1 Normality test analysis for each variable

	W value	P value
Age	0.984	0.243
BMI	0.977	0.078
Surgical time	0.776	0.000a
Intraoperative blood loss	0.648	0.000a
Duration of postoperative hospital stay	0.715	0.000a
Postoperative anal evacuation time	0.765	0.000a
Postoperative resumption of semi-liquid food time	0.941	0.000a
Tumor height	0.923	0.000a
Tumor maximum diameter	0.947	0.000a
Anterior-posterior diameter of pelvic inlet	0.980	0.122
Transverse diameter of pelvic inlet	0.991	0.729
Anterior-posterior diameter of pelvic outlet	0.977	0.070
Interischial spine diameter	0.964	0.008a
Interischial tuberosity diameter	0.981	0.163
Superior-inferior diameter of the pubic symphysis	0.082	0.000a
Sacrococcygeal distance	0.989	0.579
sacrococcygeal-pubic angle	0.131	0.000a
Anterior-posterior diameter of pelvic inlet/sacrococcygeal distance	0.937	0.000a
Rectal mesenteric fat volume at the level of the superior border of the 3rd sacral vertebra	0.948	0.001a
Rectal volume at the level of the superior border of the 3rd sacral vertebra	0.877	0.000a
Rectal mesenteric fat volume at the level of the sciatic spine	0.932	0.000a
Pelvic volume	0.986	0.390
Anorectal angle	0.993	0.853
Rectal mesenteric volume at the level of superior border of the 3rd sacral vertebra	0.944	0.000a
Rectal mesenteric fat volume at the superior border of the 3rd sacral vertebra/pelvic volume	0.981	0.195

^aP < 0.05 indicates significant deviation from normal distribution.

BMI: Body mass index.