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Table 1 Patient demographics and characteristics

From: Serum D-dimer should not be used in the diagnosis of venous thromboembolism within 28 days of total knee replacement surgery

Total number n.

50

Male n. (%)

15 (30%)

Female n. (%)

35 (70%)

Median Age at time of surgery (Range)

70.41 (53.34 – 86.10)

Previous knee Replacement n. (%)

13 (26%)

Previous hip Replacement n. (%)

5 (10%)

Patients taking anticoagulants prior to surgery n. (%)

4 (8%)

Post operative anticoagulation n (%)

 LMWH

47 (94%)

 Aspirin

1 (2%)

 Warfarin

1(2%)

 None

1(2%)

Mean Length of Hospital Stay (Range)

5.26 days (1 – 20 days)

Comorbidities n. (%)

 Hypertension

15 (30%)

 Asthma

10 (20%)

 Hypothyroidism

9 (18%)

 CKD

7 (14%)

 Previous neoplasm

7 (14%)

 Previous VTE

4 (8%)

 Epilepsy

3 (6%)

 Diabetes

3 (6%)

 Angina /Ischaemic heart disease

3 (6%)

 CVD

2 (4%)

 Previous myocardial infarction

2 (4%)

 Cerebrovascular disease

2 (4%)

 Valvular Heart Disease

2 (4%)

 Atrial Fibrillation

1 (2%)