Perioperative anticoagulation reduces the incidence of venous thromboembolism in patients undergoing gastrointestinal surgery

Table 6 Comparison of general information between the venous thromboembolism and non-venous thromboembolism groups, n (%)

Variables	VTE group (n = 43)	Non-VTE group (n = 148)	χ2	P value
Age (years)			4.706	0.030
< 65	20 (46.51)	96 (64.86)
≥ 65	23 (53.49)	52 (35.14)
Sex			0.133	0.716
Male	26 (60.47)	94 (63.51)
Female	17 (39.53)	54 (36.49)
BMI (kg/m2)			7.971	0.005
< 24	16 (37.21)	91 (61.49)
≥ 24	27 (62.79)	57 (38.51)
Nature of disease			4.387	0.036
Benign diseases of the digestive system	5 (11.63)	40 (27.03)
Malignant diseases of the digestive system	38 (88.37)	108 (72.97)
Surgical methods			4.978	0.026
Open surgery	26 (60.47)	61 (41.22)
Laparoscopic surgery	17 (39.53)	87 (58.78)
Operative time (minute)			0.105	0.745
< 120	9 (20.93)	31 (20.95)
≥ 120	34 (79.07)	117 (79.05)
Long-term postoperative bedrest			5.113	0.024
Yes	31 (72.09)	78 (52.70)
No	12 (27.91)	70 (47.30)

VTE: Venous thromboembolism; BMI: Body mass index.