Role of pelvimetry in predicting surgical outcomes and morbidity in rectal cancer surgery: A retrospective analysis

Table 2 Comparisons based on demographic, pathological, and clinical variables among patient groups formed according to computed tomography measurements

	n	Narrow	n	Normal	P value
Age (years)	48	67.13 ± 11.84	29	64.86 ± 11.96	0.421a
Gender (n = 79)
Male	48	39 (81.25)	29	14 (48.28)	0.002b
Female		9 (18.75)		15 (51.72)
BMI (kg/m2)	46	25.42 ± 3.96	2	28.93 ± 5.15	0.002a
Tumor localization
Upper rectum	48	20 (41.67)	29	10 (34.48)	0.532b
Middle rectum		11 (22.92)		5 (17.24)
Lower rectum		17 (35.42)		14 (48.27)
ASA score
I	48	1 (2.08)	28	0	0.318c
II		15 (31.25)		14 (50)
III		31 (64.58)		14 (50)
IV		1 (2.08)		0
Operation type
Open low anterior	48	24 (50)	29	11 (37.93)	0.281c
Laparoscopic low anterior		22 (45.83)		14 (48.28)
Miles		2 (4.17)		4 (13.79)
Tumor stage
0	47	1 (2.13)	29	4 (13.79)	0.604c
1		13 (27.66)		8 (27.59)
2A		11 (23.40)		6 (20.69)
2B		2 (4.26)		1 (3.45)
3A		7 (14.89)		5 (17.24)
3B		6 (12.77)		3 (10.34)
3C		7 (14.89)		2 (6.90)
Tumor size (cm)	46	4 (0:17)	29	3 (0:7)	0.052d
PCI	31	10.13 ± 1.99	21	10.80 ± 2	0.236a

^aIndependent samples t-test.

^bχ² test.

^cFisher-Freeman-Halton test.

^dMann-Whitney U test.

Data are expressed as n (%), mean ± SD, and median (minimum:maximum). ASA: American Society of Anesthesiologists; BMI: Body mass index; PCI: Pelvic cavity index.