Table 2.
Main laboratory findings on admission in the study population, stratified by occurrence of pulmonary embolism
| All (n = 689) | No PE (n = 637) | PE (n = 52) | p value | |
|---|---|---|---|---|
| Hemoglobin (g/dL) | 13.4 (11.8–14.4) | 13.4 (11.8–14.4) | 13.3 (12.1–14.9) | 0.46 |
| White blood cell count (/μL) | 6760 (4990–9320) | 6620 (4930–9200) | 8500 (6717–11,525) | 0.002 |
| Lymphocyte count (/μL) | 921.5 (620–1300) | 921.5 (620–1,300) | 932 (569–1200) | 0.91 |
| Platelet count (× 103/μL) | 204 (155–270) | 201 (154–266) | 242.5 (179.5–321) | 0.01 |
| Serum creatinine (mg/dL) | 1.0 (0.8–1.3) | 1.0 (0.8–1.3) | 0.9 (0.9–1.4) | 0.50 |
| CRP (mg/dL) | 233.5 (108.5–353.5) | 238.5 (106.5–360.5) | 203 (127.5–288.0) | 0.22 |
| Ferritin (μg/L) | 698.5 (374–1473) | 669 (368–1424) | 1470 (729–1958) | 0.01 |
| Aspartate transaminase (U/L) | 40 (26–64) | 39 (25–63) | 51.5 (36–82) | 0.003 |
| Lactate dehydrogenase (U/L) | 362 (252–520) | 353 (249–505) | 459 (294–612) | 0.03 |
| d-dimer (ng/mL) | 1,917 (820–5250) | 818.5 (417–1460) | 4,344 (1099–15,118) | < 0.001 |
| INR | 1.1 (1.0–1.2) | 1.1 (1.0–1.2) | 1.1 (1.0–1.3) | 0.44 |
| Elevated troponin | 278 (45.3) | 244 (44) | 28 (59.6) | 0.04 |
| NT-proBNP (pg/mL) | 341 (96–1323) | 341 (96–1323) | 333 (117–1183) | 0.84 |
Data shown as median (interquartile range) or, for the frequency of elevated troponin, count (%)
CRP C-reactive protein, INR international normalized ratio, NT-proBNP N-terminal pro-B-type natriuretic peptide