Table 1 Baseline characteristics of 2759 patients

Number n (%)

495 (18)

518 (19)

555 (20)

611 (22)

407 (15)

173 (6)

2759 (100)

Female sex n (%)

325 (66)

356 (69)

371 (67)

411 (67)

287 (71)

122 (71)

1872 (68)

Age (mean ± SD)

67.12 ± 1.39

72.00 ± 1.41

77.14 ± 1.40

81.88 ± 1.40

86.72 ± 1.39

92.19 ± 2.55

77.78 ± 7.59

D-dimer mean in patients with DVT (mg/L)

2.1

2.2

2.3

2.4

2.5

3.4

2.4

D-dimer mean in patients without DVT (mg/L)

1.98

2.09

2.1

2.11

2.26

2.27

2.11

D-dimer mean in all patients (mg/L)

2.00

2.10

2.12

2.13

2.28

2.36

2.14

DVT N (%)

55 (11)

45 (9)

70 (13)

57 (9)

38 (9)

15 (9)

280 (10)