Table. Demographic and Clinical Characteristics.
| Characteristic | No./total No. (%)a | |
|---|---|---|
| IDDVT (n = 5938) | Proximal DVT (n = 27 959) | |
| Female sex | 2963 (49.9) | 13 644 (48.8) |
| Male sex | 2975 (50.1) | 14 315 (51.2) |
| Age, mean (SD), y | 61 (17) | 65 (18) |
| BMI, mean (SD)b | 27.6 (5.2) | 27.8 (5.2) |
| Underlying conditions | ||
| Chronic lung disease | 410 (6.9) | 2432 (8.7) |
| Chronic heart failure | 238 (4.0) | 1146 (4.1) |
| Diabetes (n = 21 358) | 438/3655 (12.0) | 2761/17 703 (15.6) |
| Hypertension (n = 21 703) | 1476/3701 (39.9) | 8205/18 002 (45.6) |
| Prior myocardial infarction (n = 21 234) | 225/3641 (6.2) | 1059/17 593 (6.0) |
| Prior ischemic stroke (n = 21 216) | 153/3633 (4.2) | 1038/17 583 (5.9) |
| Recent major bleeding | 107 (1.8) | 531(1.9) |
| Anemia | 1692 (28.5) | 9897 (35.4) |
| Platelet count, mean (SD), cells per mL | 247 (91) | 234 (94) |
| Creatinine clearance, mean (SD), mL/min/1.73 m2 | 85 (39) | 79 (39) |
| Recent surgery | 1692 (15.6) | 2572 (9.2) |
| Recent immobility | 1384 (23.3) | 6794 (24.3) |
| Active cancer | 724 (12.2) | 4697 (16.8) |
| Prior VTE | 843 (14.2) | 4697 (16.8) |
| Pregnancy/puerperium (n = 16 462) | 58/2963 (2.0) | 536/13 644 (4.0) |
| Hormonal use among women (n = 17 369) | 395/2926 (13.5) | 1400/14 443 (9.7) |
| Symptoms | ||
| Pain (n = 33 297) | 5261/5807 (90.6) | 24 142/27 490 (87.8) |
| Swelling (n = 33 260) | 4958/5765 (86.0) | 26 033/27 495 (94.7) |
| Vital signs | ||
| SBP <90 mm Hg (n = 30 752) | 90/5057 (1.8) | 800/25 695 (3.1) |
| Heart rate >100 bpm (n = 29 874) | 380/4827 (5.7) | 2996/25 047 (8.7) |
| SaO2 < 90% (n = 2837) | 26/330 (7.9) | 174/2507 (6.9) |
Abbreviations: BMI, body mass index; bpm, beats per minute; DVT, deep vein thrombosis; IDDVT, isolated distal DVT; SaO2, oxygen saturation; SBP, systolic blood pressure; VTE, venous thromboembolism.
SI conversion factor: To convert creatinine clearance to milliliter per second per meter squared, multiply by 0.0167.
a
Values listed as No. (%) unless otherwise specified.
b
Calculated as weight in kilograms divided by height in meters squared.