Table 2 Patient characters and tumor-specific factors of the study population

 Age, y, IQR

66.0 (60.0–73.0)

64.0 (57.0–70.8)

0.001

  ≥ 65 years, N (%)

190 (60.9)

114 (46.0)

< 0.001

 Male, N (%)

199 (63.8)

166 (66.9)

0.437

 BMI, ± SD (kg/m²)

24.2 ± 3.8

23.6 ± 4.0

0.077

  ≥ 25 (kg/m²), N (%)

119 (38.1)

82 (33.1)

0.214

 Smoking history, N (%)

119 (38.1)

105 (42.3)

0.314

 Past alcohol use, N (%)

79 (25.3)

64 (25.8)

0.896

 Diabetes

57 (18.3)

55 (22.2)

0.251

 Hypertension

135 (43.3)

98 (39.5)

0.371

 Prior VTE

56 (17.9)

3 (1.2)

< 0.001

 MACCE

55 (17.6)

51 (20.6)

0.378

Causes of ICU admission

0.002

 Surgical, N (%)

205 (65.7)

192 (77.4)

 Medical, N (%)

107 (34.3)

56 (22.6)

Tumor category, N (%)

0.244

 Lung cancer

17 (5.4)

16 (6.5)

 Hepatobiliary and pancreatic tumors

28 (9.0)

15 (6.0)

 Tumors of digestive system

199 (63.8)

167 (67.3)

 Breast cancer

15 (4.8)

3 (1.2)

 Gynecological tumors

11 (3.5)

10 (4.0)

 Retroperitoneal masses

21 (6.7)

19 (7.7)

 Others^*

21 (6.7)

18 (7.3)

Stage^a

0.513

 1–3, N (%)

216 (71.1)

165 (68.5)

 4, N (%)

88 (28.9)

76 (31.5)

Grade^a

0.002

 1–2, N (%)

160 (52.6)

158 (65.6)

 3–4, N (%)

144 (47.4)

83 (34.4)

 WBC, ×10⁹/L, IQR

5.9 (4.6–7.3)

5.7 (4.6–7.6)

0.755

 Hemoglobin, g/L, IQR

124.0 (103.3–141.0)

123.5 (101.0–141.8)

0.984

 Platelet, ×10⁹/L, IQR

198.0 (153.3–266.8)

181.5 (137.5–251.0)

0.044

 Creatinine, μmol/L, IQR

64.0 (53.0–74.0)

67.0 (55.0–81.0)

0.742

 Albumin, g/L, IQR

41.4 (37.9–44.7)

41.9 (37.4–44.8)

0.479

 Bilirubin, μmol/L, IQR

12.6 (9.1–17.6)

12.1 (8.4–16.7)

0.120

 Glucose, mmol/L, IQR

5.7 (5.1–6.9)

5.6 (5.0–6.8)

0.985

 TC, mmol/L, IQR^b

4.37 (3.81–5.17)

4.26 (3.52–4.98)

0.039

 TG, mmol/L, IQR^b

1.18 (0.85–1.74)

1.24 (0.85–1.85)

0.299

ABO blood group, N (%)^c

0.216

 A

86 (27.8)

85 (34.4)

 B

100 (32.4)

66 (26.7)

 AB

32 (10.4)

31 (12.6)

 O

91 (29.4)

65 (26.3)

APTT, s, IQR

30.1 (27.6–34.0)

31.0 (28.5–35.3)

0.362

INR, IQR

1.02 (0.97–1.08)

1.04 (0.98–1.14)

0.131

D-dimer, μmol/L, IQR^d

1.18 (0.75–2.51)

1.03 (0.67–2.12)

0.052

APECHE II

10 (7–13)

9 (7–12)

0.145