Skip to main content

Table 3 Comparison of caprini risk factors between non-DVT group and DVT group

From: The application of Caprini Risk Assessment Model in evaluation of deep vein thrombosis for patients with end-stage osteoarthritis before arthroplasty

Relative Risk Factors

Risk Score

Non-DVT

(n, %)

DVT

(n, %)

P value

Age

 ≤ 40 yrs

-

5, (0.29)

0, (0.00)

0.012*

41–60 yrs

1

241, (14.11)

6, (6.00)

61–74 yrs

2

1098, (64.29)

61, (61.00)

 ≥ 75 yrs

3

364, (21.31)

33, (33.00)

Visible varicose veins

1

45, (2.63)

2, (2.00)

0.698

History of inflammatory bowel disease

1

2, (0.12)

0, (0.00)

0.732

Swollen legs (current)

1

2, (0.12)

1, (1.00)

0.035*

BMI, 25–40 kg/m2

1

1189, (69.61)

60, (60.00)

0.043*

Lung disease (eg, emphysema or COPD)

1

17, (1.00)

0, (0.00)

0.316

Other risk factors (< 1 mo)

BMI, ≥ 40 kg/m2

1

6, (0.35)

0, (0.00)

0.553

Smoking

1

71, (4.16)

2, (2.00)

0.287

Diabetes requiring insulin

1

45, (2.63)

4, (4.00)

0.414

For women only

Current use of birth control or hormone replacement therapy(HRT)

1

4, (0.23)

0, (0.00)

0.628

Current or past malignancies

2

57, (3.34)

3, (3.00)

0.855

History of blood clots

3

9, (0.53)

7, (7.00)

 < 0.001*

Total score

-

2.96 ± 0.96

3.28 ± 1.33

0.022*

  1. DVT Deep venous thrombosis, BMI Body mass index, COPD Chronic obstructive pulmonary disease, yrs years, mo month
  2. χ2test to analysis the incidence of perioperative DVT in different age groups
  3. The values are given as the mean ± standard deviation
  4. * < 0.05 was considered statistically significant