Predicting surgical site infections using a novel nomogram in patients with hepatocelluar carcinoma undergoing hepatectomy

Table 2 Univariate and multivariate analyses of risk factors for surgical site infections in the training cohort

	Univariate analysis			Multivariate analysis
	OR	95%CI	P-value	OR	95%CI	P-value
Gender	0.600	0.278-1.297	0.192
Age, yr	0.975	0.941-1.010	0.282
BMI, kg/m2	1.004	0.894-1.129	0.930
ASA score > 2	2.674	1.346-5.315	0.006	4.518	1.528-13.360	0.006
Smoking	0.862	0.499-1.653	0.654
Alcohol consumption	1.002	0.526-1.911	0.994
Diabetes	0.966	0.314-2.970	0.951
Child-Pugh grade	1.044	0.840-1.298	0.655
TNM stage	1.174	0.873-1.416	0.247
Cirrhosis	0.960	0.476-1.935	0.909
Elevated ALT, U/L	1.193	0.618-2.303	0.600
Elevated AST, U/L	1.299	0.682-2.476	0.425
Albumin, g/L	0.789	0.721-0.836	0.001	0.900	0.817-0.992	0.033
TB, μmol/L	0.989	0.968-1.011	0.071
Hb, g/L	1.007	0.987-1.027	0.145
History of RFA	1.554	0.329-7.337	0.575
History of TACE	1.201	0.143-9.071	0.866
Repeat hepatectomy	2.364	1.203-4.646	0.013	3.859	1.435-10.381	0.007
Type of hepatectomy	2.649	1.406-4.994	0.002	1.277	0.506-3.228	0.605
Duration of surgery, min	1.009	1.006-1.013	< 0.001	1.011	1.007-1.015	< 0.001
Blood loss, mL	1.001	1.000-1.002	0.002	1.001	0.999-1.002	0.329
Intraoperative blood transfusion	1.464	0.717-2.991	0.299

BMI: Body Mass Index; TB: Total bilirubin; Hb: Haemoglobin; SSI: Surgical site infections; RFA: Radiofrequency ablation; TACE: Transcatheter arterial chemoembolization.