Table 3 Caprini risk factors and scores by VTE events

Age 40–59 years

1

58(54.2%)

2(20%)

0.082

Abnormal pulmonary function

1

13(12.2%)

3(30%)

0.276

BMI = 30 kg/m²

1

2(1.9%)

0(0%)

1.000

Congestive heart failure (< 1 month),

1

2(1.9%)

2(20%)

0.036

History of inflammatory bowel disease

1

0(0%)

1(10%)

0.086

Sepsis (< 1 month)

1

13(12.2%)

4(40%)

0.055

Serious acute lung disease (< 1 month)

1

3(2.8%)

3(30%)

0.008

Varicose vein

1

2(1.9%)

0(0%)

1.000

Age 60–74 years

2

28(26.2)

8(80%)

0.002

Central venous access

2

3(2.8%)

1(10%)

0.304

Confined to bed (> 72 h)

2

4(3.7%)

2(20%)

0.082

Major open surgery (= 45 min)

2

107(100%)

10(100%)

1.000

prior cancer (except nonmelanoma skin)

2

7(6.5%)

0(0%)

1.000

Age = 75 years

3

1(0.9%)

0(0%)

1.000

History VTE

3

6(5.6%)

1(10%)

0.474

Chemotherapy

3

1(0.9%)

0(0%)

1.000

Caprini score, median (IQR)

-

3(1)

6.5(4)

< 0.001