Table 4.

Clinical factors associated with development of VTE within 90 days after hepatic surgery

	Univariate analysis		P value	Adjusted analysis		P value
Variables	OR	95 % CI		OR	95 % CI
Age	1.01	0.98–1.04	0.40	–	–	–
Race	0.82	0.32–2.06	0.67	–	–	–
Male sex	0.75	0.35–1.62	0.47	–	–	–
ASA score (1, 2 vs. 3, 4)	2.06	0.70–6.06	0.19	1.61	0.45–5.73	0.46
History of VTE	3.49	1.13–10.81	0.03	4.51	1.18–17.22	0.03
Elevated AST	1.46	0.67–3.19	0.34	–	–	–
Elevated ALT	1.26	0.54–2.92	0.59	–	–	–
Elevated ALP	1.31	0.60–2.90	0.50	–	–	–
Hematocrit	0.92	0.85–0.99	0.03	0.94	0.86–1.04	0.24
Type of hepatic surgery
Hemi-hepatectomy	0.99	0.35–2.78	1.00	–	–	–
Extended hepatectomy	3.97	1.60–9.82	0.003	2.08	0.65–6.62	0.22
Operative time	1.22	1.09–1.37	0.001	1.17	1.04–1.32	0.009
LOS	1.01	1.00–1.02	0.06	1.07	1.02–1.12	0.01
Re-operation	9.33	3.07–28.39	<0.001	3.30	0.95–11.46	0.06
Transfusion	2.33	1.09–5.00	0.03	0.69	0.22–2.15	0.52
Complication (1–2 vs. 3–5)	8.54	3.56–20.50	<0.001	3.30	0.95–11.46	0.06
VTE prophylaxis	1.49	0.56–4.00	0.43	–	–	–