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

Table 8 Risk factors affecting early recurrence development, regression analysis

	Univariate logistic regression model		Multivariate logistic regression model
	OR (95%CI)	P value	OR (95%CI)	P value
Age (years)	1.04 (0.99-1.09)	0.134
Gender (male)	1.44 (0.45-4.62)	0.542
BMI	0.99 (0.87-1.12)	0.854
Tumor localization (upper rectum)		0.770
Middle rectum	1.67 (0.37-7.48)	0.501
Lower rectum	1.06 (0.29-3.95)	0.929
ASA score	1.29 (0.44-3.78)	0.639
Operation type (open low anterior)		0.721
Laparoscopic low anterior	1.62 (0.51-55.17)	0.419
Miles	0	0.999
Operation duration	0.99 (0.98-1)	0.067	0.99 (0.97-0.99)	0.039
Blood loss (cc)	1 (0.99-1.02)	0.548
Tumor stage (0)		0.807
1	5.33 (0.34-82.83)	0.232
2A	2 (0.19-20.97)	0.563
2B	1.85 (0.16-20.94)	0.621
3A	0	0.999
3B	1.46 (0.11-18.96)	0.775
3C	4.80 (0.39-59.90)	0.223
Tumor size	0.94 (0.74-1.20)	0.635
Pelvic inlet area-CT (mm2)	1 (1-1)	0.900
Amount of dissected lymph node	0.95 (0.88-1.03)	0.239
PCI	1.02 (0.732-1.43)	0.894
Length of stay	1.03 (0.94-1.12)	0.503
Re-admission (exist)	3.63 (1.04-12.72)	0.044	6.07 (1.42-25.97)	0.015
Pelvic infection (exist)	2.25 (0.49-10.29)	0.296

For the gender variable, the 'male' category; for tumor localization, the 'upper rectum' category; for the type of operation, the 'open Low anterior' category; for tumor stage, the 'stage 0' category; for readmission, the 'absent' category; and for pelvic infection, the 'absent' category were considered as the reference categories. ASA: American Society of Anesthesiologists; CT: Computed tomography; BMI: Body mass index; PCI: Pelvic cavity index.