Table 2 Univariate analysis of variables between DVT and non-DVT group

Sex

0.032

Male

12 (21.8)

134 (36.6)

Female

43 (78.2)

232 (63.4)

Age (year)

57.3 ± 5.8

56.1 ± 6.5

0.192

≥60

19

112

0.556

<60

36

254

BMI (kg/m²)

26.4 ± 3.4

26.7 ± 3.4

0.489

<28

42 (76.4)

241 (65.8)

0.121

≥28

13 (23.6)

125 (34.2)

Hypertension

19 (34.5)

143 (39.1)

0.520

Diabetes

11 (20.0)

34 (9.3)

0.017

Pulmonary disease

8 (14.5)

23 (6.3)

0.029

Past history of surgery on lower extremity

5 (9.1)

45 (12.3)

0.493

Cardiovascular disease

8 (14.5)

36 (9.8)

0.287

Hepatobiliary disease

4 (7.3)

29 (7.9)

0.867

ASA

0.949

1–2

49 (89.1)

325 (88.8)

3–4

6 (10.9)

41 (11.2)

Hypercholesterolemia

24 (43.6)

113 (30.9)

0.060

Hyperlipidemia

24 (43.6)

103 (28.1)

0.020

Smoking (yes)

6 (10.9)

43 (11.7)

0.856

Alcohol drinking (yes)

6 (10.9)

45 (12.3)

0.769

Sidedness

0.450

Left

32 (58.2)

193 (52.7)

Right

23 (41.8)

173 (47.3)

Radiographic K-L grade

0.468

II

21 (38.2)

109 (30.0)

III

26 (47.3)

198 (54.5)

IV

8 (14.5)

56 (15.4)

Time to operation (days)

2.2 ± 2.0

1.9 ± 1.5

0.372

Intraoperative blood loss (ml)

130.4 ± 73.6

121.0 ± 54.7

0.261

Surgical duration

110.6 ± 40.4

104.5 ± 35.0

0.263

Incision length (≥ 8)

15 (27.3)

89 (24.3)

0.636

*Correction angle (°)

9.4 ± 2.5

9.7 ± 2.7

0.577

Osteotomy gap filling (yes)

48 (87.3)

313 (85.5)

0.542

FBG (mmol/L)

5.7 ± 1.7

5.5 ± 1.3

0.295

AT III ≥100.0%

24 (43.6)

124 (33.9)

0.158

FDP ≥ 1.37 mg/L

24 (43.6)

130 (35.5)

0.244