Table 4.
Comparison Between Patients With and Without d-Dimer Elevation
| Variable | d-dimer < 2,600 ng/mL | d-dimer > 2,600 ng/mL | p Value |
|---|---|---|---|
| Age, y, median (IQR) | 48 (37–56) | 58 (53–59) | 0.147 |
| BMI, kg/m2, median (IQR) | 30 (28–32) | 30 (28–33) | 0.516 |
| Cardiac arrhythmias, % | 6 | 7 | 0.999 |
| Hypertension, % | 55 | 53 | 0.752 |
| Diabetes mellitus, % | 41 | 40 | 0.999 |
| Hyperlipidemia, % | 24 | 27 | 0.999 |
| COPD, % | 7 | 0 | 0.540 |
| Asthma, % | 7 | 13 | 0.596 |
| Smoking/vaping, % | 0 | 13 | 0.111 |
| Alcohol or substance abuse disorder, % | 0 | 0 | 0.999 |
| Immunosuppression, % | 3 | 0 | 0.999 |
| None of the above, % | 45 | 52 | 0.999 |
| Platelet count, 109/L, median (IQR) | 262 (167–409) | 229 (198–254) | 0.820 |
| Prothrombin time, s, median (IQR) | 14 (13–16) | 15 (14–16) | 0.278 |
| Activated partial thromboplastin time, s, median (IQR) | 38 (30–42) | 35 (30–50) | 0.820 |
| Fibrinogen, mg/dL, median (IQR) | 675 (544–759) | 686 (568–862) | 0.455 |
| C-reactive protein, mg, median (IQR) | 112 (67–218) | 186 (120–271) | 0.240 |
| R-time, min, median (IQR) | 6.3 (4.8–7.5) | 7.6 (4.1–10.6) | 0.577 |
| Angle, degrees, median (IQR) | 71 (64–76) | 68 (64–75) | 0.528 |
| Maximum amplitude, mm, median (IQR) | 75 (68–77) | 75 (68–77) | 0.999 |
| Clot lysis at 30 min, %, median (IQR) | 0 (0–0.6) | 0 (0–0.2) | 0.366 |
IQR, interquartile range.