Table 3 Distribution of co-morbidities and VTE risk factors

Malignancy

12

14.1%

Previous VTE

10

11.8%

Diabetes

10

11.8%

Chronic obstructive

Pulmonary disease

13

15.3%

Cardiac disease

24

28.2%

Obesity

27

31.8%

Hypertension

28

32.9%

Vascular disease

18

21.2%

Thrombophylic disorders

1

1.2%

Contraceptives

3

3.5%

Hormonal therapy

4

4.7%

Varicose veins

2

2.4%

Rheumatic disease

5

5.9%

More than two comorbidities

26

30.6%

More than three comorbidities

20

23.5%

More than four comorbidities

8

9.4%

Median

Range

Charlson Comorbidity Index

2 IQR = 0 to 3

0 to 10