. 2024 Mar 7;25:205. doi: 10.1186/s12891-024-07327-y

Table 2.

Univariate analysis of factors associated with postoperative deep venous thrombosis (DVT)

Variables	DVT Group (n = 35, %)	Non-DVT Group (n = 316, %)	P value
Age > 51.5 year Gender Male Female Occupation Agricultural laborer Office clerk Residence, rural area	35 (100.0) 6 (17.1) 29 (82.9) 21 (60.0) 14 (40.0) 16 (45.7)	310 (98.1) 93 (29.4) 223 (70.6) 252 (79.7) 64 (20.3) 176 (55.7)	0.411 0.125 0.008‡ 0.260
Disease duration > 8.5 year Comorbidities Hypertension Diabetes	19 (54.3) 21 (60.0) 4 (11.4)	114 (36.1) 144 (45.6) 40 (12.7)	0.035‡ 0.105 0.835
Length of surgical incision (cm) Operation time > 169 min Intraoperative blood loss > 102 ml BMI > 26.8 kg/m²	11.8 ± 0.5 21 (60.0) 20 (57.1) 30 (85.7)	11.9 ± 1.0 108 (34.2) 73 (23.1) 182 (57.6)	0.410 0.003‡ < 0.001‡ 0.001‡
Preoperative- WBC (3.5–9.5*10⁹/L)	5.6 ± 1.5	5.9 ± 1.4	0.359
RBC (3.8–5.110⁹/L) HGB (115–150 g/L) PLT (125–350*10⁹/L) D dimer > 0.29 mg/L Prothrombin time < 10.7 s INR < 0.98 Length of hospitalization (day)	4.3 ± 0.4 131.4 ± 14.2 221.8 ± 44.7 24 (68.6) 10 (28.6) 14 (40.0) 11.7 ± 3.9	4.3 ± 0.4 132.8 ± 15.0 239.2 ± 64.4 121 (38.3) 150 (47.5) 186 (58.9) 13.1 ± 4.6	0.446 0.594 0.121 0.001‡ 0.033‡ 0.032‡ 0.087

Variables

DVT Group
(n = 35, %)

Non-DVT Group (n = 316, %)

P value

Age > 51.5 year

Gender

Male

Female

Occupation

Agricultural laborer

Office clerk

Residence, rural area

35 (100.0)

6 (17.1)

29 (82.9)

21 (60.0)

14 (40.0)

16 (45.7)

310 (98.1)

93 (29.4)

223 (70.6)

252 (79.7)

64 (20.3)

176 (55.7)

0.411

0.125

0.008‡

0.260

Disease duration > 8.5 year

Comorbidities

Hypertension

Diabetes

19 (54.3)

21 (60.0)

4 (11.4)

114 (36.1)

144 (45.6)

40 (12.7)

0.035‡

0.105

0.835

Length of surgical incision (cm)

Operation time > 169 min

Intraoperative blood loss > 102 ml

BMI > 26.8 kg/m²

11.8 ± 0.5

21 (60.0)

20 (57.1)

30 (85.7)

11.9 ± 1.0

108 (34.2)

73 (23.1)

182 (57.6)

0.410

0.003‡

< 0.001‡

0.001‡

Preoperative-

WBC (3.5–9.5*10⁹/L)

5.6 ± 1.5

5.9 ± 1.4

0.359

RBC (3.8–5.1*10⁹/L)

HGB (115–150* g/L)

PLT (125–350*10⁹/L)

D dimer > 0.29 mg/L

Prothrombin time < 10.7 s

INR < 0.98

Length of hospitalization (day)

4.3 ± 0.4

131.4 ± 14.2

221.8 ± 44.7

24 (68.6)

10 (28.6)

14 (40.0)

11.7 ± 3.9

4.3 ± 0.4

132.8 ± 15.0

239.2 ± 64.4

121 (38.3)

150 (47.5)

186 (58.9)

13.1 ± 4.6

0.446

0.594

0.121

0.001‡

0.033‡

0.032‡

0.087

‡, significant variable; WBC, white blood cell count; RBC, erythrocyte count; HGB, hemoglobin