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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%)