Table 1.
Differences Between Patients Presenting with D-Dimer Levels Above and Below 0.5 mg/L
| Variable | D-Dimer >=0.5 mg/L | D-Dimer <0.5 mg/L | P Value |
|---|---|---|---|
| (n) | 765 (47%) | 847 (53%) | |
| Age | 68.7 SD 16.2 years | 57.7 SD 18.0 years | <.0001 |
| Male sex | 389 (51%) | 423 (50%) | .75 |
| ICD-10 codes assigned at presentation | 3.2 SD 2.2 | 2.5 SD 1.7 | <.0001 |
| Admitted to hospital | 551 (72%) | 444 (52%) | <.0001 |
| Length of hospital stay if admitted | 5.7 SD 8.2 days | 3.4 SD 8.4 days | <.0001 |
| Re-presented within 90 days | 309 (40%) | 292 (34%) | .02 |
| Died within 7 days | 5 (0.6%) | 0 (0.0%) | .06 |
| Died within 90 days | 62 (8.1%) | 10 (1.2%) | <.0001 |
ICD-10 = International Statistical Classification of Diseases, 10th revision; SD = standard deviation.