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Table 1 Comparison between group 1 and group 2 in all variables collected

From: Prevalence and risk factors of preoperative deep venous thrombosis in closed patella fracture: a prospective cohort study

Variables

Group 1 (n = 755)

Group 2 (n = 35)

p

Number (%)

Number (%)

Gender(male)

445 (58.9)

24 (68.6)

.257

Age category

  

.003

 18< Age ≤ 44 years

242 (32.1)

8 (22.9)

 

 45 ≤ Age < 64 years

367 (48.6)

12 (34.3)

 

 Age ≥ 65 years

146 (19.3)

15 (42.9)

 

BMI (kg/m2)

  

.973

 18.5–23.9

455 (60.3)

23 (65.7)

 

 < 18.5

25 (3.3)

1 (2.9)

 

 24.0–27.9

202 (26.8)

8 (22.9)

 

 ≥ 28.0

73 (9.7)

3 (8.6)

 

Current smoking

99 (13.1)

5 (14.3)

.799

Alcohol consumption

68 (9.0)

7 (20.0)

.030

Living place (rural)

392 (51.9)

20 (57.1)

.545

Diabetes mellitus

81 (10.7)

4 (11.4)

.783

Hypertension

167 (22.1)

8 (22.9)

.918

Ischemic heart disease

52 (6.9)

2 (5.7)

.566

Arrhythmia

34 (4.5)

3 (8.6)

.222

Chronic lung diseases

11 (1.5)

1 (2.9)

.422

History of cerebral infarction

34 (4.5)

3 (8.6)

.222

History of any surgery

130 (17.2)

4 (11.4)

.372

Injury mechanism (high energy)

91 (12.1)

10 (28.6)

.009

Fracture type (comminuted)

78 (10.3)

6 (17.1)

.253

TP (< 60 g/L)

360 (47.7)

20 (57.1)

.273

ALB (< 35 g/L)

221 (29.3)

21 (60.0)

.000

FBG (> 6.1 mmol/L)

228 (30.2)

9 (25.7)

.571

TC (> 5.2 mmol/L)

63 (8.3)

3 (8.6)

.962

TG (> 1.7 mmol/L)

160 (21.2)

6 (17.1)

.565

LDL-C (> 3.37 mmol/L)

205 (27.2)

15 (42.9)

.043

VLDL (> 0.78 mmol/L)

158 (20.9)

6 (17.1)

.589

HDL-C (< 1.1 mmol/L)

206 (27.3)

11 (31.4)

.591

WBC (> 10 × 109/L)

152 (20.1)

6 (17.1)

.666

NEUT (> 6.3 × 109/L)

268 (35.5)

8 (22.9)

.125

LYM (< 1.1 × 109/L)

121 (16.0)

6 (17.1)

.860

RBC (< lower limit)

167 (22.1)

7 (20.0)

.767

HGB (< lower limit)

174 (23.0)

6 (17.1)

.416

HCT (< lower limit)

141 (18.7)

6 (17.1)

.820

PLT (> 300 × 109/L)

47 (6.2)

6 (17.1)

.024

RDW (> 16.5%)

7 (0.9)

1 (2.9)

.305

PDW (> 18.1%)

16 (2.1)

1 (2.9)

.541

D-dimer (> 0.5 mg/L)

352 (46.6)

27 (77.1)

.000

  1. DVT deep venous thrombosis, BMI body mass index, RBC red blood cell, reference range: female, 3.5–5.0 × 1012/L, males, 4.0–5.5 × 1012/L, HGB hemoglobin, reference range: females, 110–150 g/L, males, 120–160 g/L, FBG fasting blood glucose, HCT hematocrit, 40–50%, WBC white blood cell, NEUT neutrophile, LYM lymphocyte, PLT platelet, 100–300 × 109/L, TP total protein, ALB albumin, RDW red cell distribution width, PDW platelet distribution width, TC total cholesterol, TG triglyceride, LDL-C low-density lipoprotein cholesterol, HDL-C high-density lipoprotein cholesterol, VLDL very-low-density lipoprotein