Table 1.
Basic characteristics of the study population stratified by recurrent and non-recurrent VTE patients
| Parameters | Non recurrent VTE n (%) |
Recurrent VTE n (%) | Total n (%) | P-valuec |
|---|---|---|---|---|
| Age at inclusion | ||||
| Years, median (IQR) | 66.4 (24) | 63.4 (24) | 65.8 (24) | 0.088b |
| BMI | ||||
| Mean ± SD | 26.6 ± 4.7 | 27.4 ± 5.1 | 26.6 ± 4.8 | 0.066a |
| Sex (age ≤ 45 years) | ||||
| Males | 67 (33.7) | 16 (61.5) | 83 (36.9) | 0.009 |
| Females | 132 (66.3) | 10 (38.5) | 142 (63.1) | |
| (Age > 45 years) | ||||
| Male | 498 (51.7) | 62 (50.8) | 560 (51.6) | 0.923 |
| Female | 466 (48.3) | 60 (49.2) | 526 (48.4) | |
| DVT | ||||
| DVT | 886 (76.2) | 116 (78.4) | 1002 (76.4) | 0.608 |
| No DVT | 277 (23.8) | 32 (21.6) | 309 (23.6) | |
| PE | ||||
| PE | 343 (29.5) | 45 (30.4) | 388 (29.6) | 0.848 |
| No PE | 820 (70.5) | 103 (69.6) | 923 (70.4) | |
| DVT + PE | ||||
| DVT | 820(70.5) | 103 (69.6) | 923 (70.4) | 0.306 |
| PE | 277 (23.5) | 32 (21.6) | 309 (23.6) | |
| DVT + PE | 66 (5.7) | 13 (8.8) | 79 (6) | |
| Malignancy | ||||
| Yes | 140 (12.1) | 13 (8.8) | 153 (11.7) | 0.278 |
| No | 1020 (87.9) | 135 (91.2) | 1155 (88.3) | |
| Thrombophilia | ||||
| Yes | 390 (36.9) | 68 (49.6) | 458 (38.3) | 0.005 |
| No | 668 (63.1) | 69 (50.4) | 737 (61.7) | |
| Acquired risk factors | ||||
| Yes | 499 (42.9) | 53 (35.8) | 552 (42.1) | 0.112 |
| No | 664 (57.1) | 95 (64.2) | 759 (57.9) | |
| Family history | ||||
| Yes | 269 (23.5) | 47 (32.4) | 316 (24.5) | 0.024 |
| No | 875 (76.5) | 98 (67.6) | 973 (75.5) |
DVT deep vein thrombosis, PE pulmonary embolism, BMI body mass index, IQR interquartile range
aStudent T-test
bMann-Whitney U test
cComparing non-recurrent with recurrent VTE