Table 3.

Univariate and multivariate analyses of factors associated with postoperative infectious complications

Feature	Univariable analysis			Multivariate analysis
	P value	OR	95% CI	P value	OR	95% CI
Age	0.018*	1.64	1.09 ~ 2.48	0.159	1.41	0.88 ~ 2.26
Gender	0.336	0.81	0.54 ~ 1.24
BMI	0.003*	1.90	1.24 ~ 2.90	0.071	1.56	0.96 ~ 2.52
SFA(cm2)	0.184	1.00	0.99 ~ 1.01
VO	0.000*	2.52	1.55 ~ 4.08	0.012*	2.01	1.17 ~ 3.48
Smoking	0.003*	2.15	1.29 ~ 3.58	0.014*	2.04	1.16 ~ 3.59
Hypertension	0.049*	1.53	1.00 ~ 2.34	0.927	0.98	0.60 ~ 1.59
Diabetes	0.368	1.31	0.73 ~ 2.35
COPD	0.005*	2.51	1.32 ~ 4.75	0.029*	2.23	1.09 ~ 4.57
Coronary heart disease	0.186	1.51	0.82 ~ 2.78
Cerebral infarction	0.018*	1.90	1.12 ~ 3.25	0.418	1.28	0.70 ~ 2.34
Fatty liver	0.737	1.16	0.48 ~ 2.82
Anemia	0.194	0.74	0.47 ~ 1.17
Low albumin	0.782	0.94	0.61 ~ 1.45
Fasting blood glucose	0.584	1.04	0.91 ~ 1.19
WBC	0.255	0.94	0.84 ~ 1.05
Neutrophil	0.106	0.90	0.79 ~ 1.02
LMR	0.189	0.95	0.87 ~ 1.03
Operation time	0.000*	2.95	1.94 ~ 4.49	0.000*	2.52	1.60 ~ 3.97
Surgical approach	0.281	1.48	0.72 ~ 3.03
Perioperative blood infusion	0.207	1.42	0.82 ~ 2.45
Ostomy	0.000*	2.19	1.44 ~ 3.33	0.033*	1.65	1.04 ~ 2.61
Pathology	0.981	1.01	0.57 ~ 1.78
Tumor location	0.108	0.72	0.48 ~ 1.08
Histologic type	0.248	1.35	0.81 ~ 2.25
Tumor diameter (Max)	0.433	0.96	0.85 ~ 1.07
Pathological stage	0.227	0.78	0.52 ~ 1.17

Low albumin, albumin < 40 g/L; Anemia, hemoglobin concentration < 120 g/L for men and < 110 g/L for women

BMI, body mass index; VO, visceral obesity, visceral fat area ≥ 100 cm²; SFA, subcutaneous fat area; COPD, chronic obstructive pulmonary disease; LMR, lymphocyte to monocyte ratio; OR, odds ratio; CI, confidence interval

Age (65 years), BMI (25 kg/m²) and operation time (4 h) were set as binary variables

^*Statistically significant (P < 0.05)