All patients without DVT (n = 531) | Alternative findings (n = 349) | No alternative findings (n = 182) | P value* | ||||
---|---|---|---|---|---|---|---|
n | %* | n | %* | n | %* | ||
Females | 269 | 50.7 | 174 | 49.9 | 95 | 52.2 | 0.6478 |
Age in years, median (IQR#) | 70 (56–78) | 71 (58–78) | 66 (52–77) | 0.0226 | |||
Symptoms | |||||||
Leg pain | 189 | 35.6 | 133 | 38.1 | 56 | 30.8 | 0.1047 |
Leg swelling | 180 | 33.9 | 138 | 39.5 | 42 | 23.1 | 0.0002 |
Circumference difference | 116 | 21.8 | 89 | 25.5 | 27 | 14.8 | 0.0055 |
Redness | 32 | 6 | 27 | 7.7 | 5 | 2.7 | 0.0213 |
Risk factors | |||||||
Known coagulopathy | 6 | 1.1 | 2 | 0.6 | 4 | 2.2 | 0.1878 |
Active cancer | 59 | 11.1 | 39 | 11.2 | 20 | 11.0 | 0.9999 |
Previous DVT | 63 | 11.9 | 50 | 14.3 | 13 | 7.1 | 0.0160 |
Wells score, median (interquartile range) | 1 (0–2) [n = 168] | 1 (0–2) [n = 117] | 0 (0–2) [n = 51] | 0.3508 | |||
Lab | |||||||
D-Dimer, median (interquartile range) | 1.6 (0.73–3.1) [n = 319] | 1.5 (0.78–2.925) [n = 204] | 1.6 (0.68–3.35) [n = 115] | 0.9119 |