Table 1.
Demographics of patients hospitalized after a positive D‐dimer measurement ( ≥1.0 μg/mL) that was taken in the emergency department (ED), grouped according to the quality of documentation in the electronic medical record
| Total | Quality of documentation in the ED | |||
|---|---|---|---|---|
| ND group | CAP group | LDD group | ||
| 1,710 cases | Cases (%) | Cases (%) | Cases (%) | |
| 1,268 (74.15) | 332 (19.42) | 110 (6.43) | ||
| Sex | ||||
| Female | 782 | 584 (74.68) | 153 (19.57) | 45 (5.75) |
| Male | 928 | 684 (73.71) | 179 (19.29) | 65 (7.00) |
| Age, years | ||||
| <80 | 967 | 727 (75.18) | 184 (19.03) | 56 (5.74) |
| ≥80 | 743 | 541 (72.81) | 148 (19.92) | 54 (7.27) |
| D‐dimer, μg/mL | ||||
| 1.0 ≤ D‐dimer < 3.0 | 716 | 547 (76.40) | 143 (19.97) | 26 (3.67) |
| 3.0 ≤ D‐dimer < 10.0 | 556 | 409 (73.56) | 108 (19.42) | 39 (7.02) |
| 10.0 ≤ D‐dimer | 438 | 312 (71.23) | 81 (18.49) | 45 (10.28) |
| Admission on emergency duty daya (cases) | 998 | 739 (73.48) | 194 (20.79) | 65 (5.73) |
| Death on hospitalization (cases) | 279 | 205 (73.48) | 58 (20.79) | 16 (5.73) |
| Primary diseaseb | ||||
| Cancer bearing | 199 | 160 (80.40) | 32 (16.08) | 7 (3.52) |
| Infection | 660 | 464 (70.30) | 144 (21.82) | 52 (7.88) |
| Trauma | 343 | 290 (84.55) | 43 (12.54) | 10 (2.91) |
| Others | 591 | 424 (71.74) | 123 (20.81) | 44 (7.45) |
| Venous US performedc | 305 | 192 (62.95) | 64 (20.98) | 49 (10.07) |
| DVT‐detected cases | 61 | 25 (40.98) | 22 (36.07) | 14 (22.65) |
| From admission to venous US, daysd | 5.66 (±10.20) | 5.91 (±0.84) | 4.39 (±1.47) | 5.90 (±0.83) |
Admitted on emergency duty day.
Multiple chosen.
During the patient's hospitalization period.
Measured from the day of admission to the day at which venous ultrasound (US) carried out. No difference in these periods was evident between the three groups (two‐sided Tukey–Kramer method, P = 0.71).
CAP group, D‐dimer results copied and pasted (i.e., described only); DVT, deep venous thrombosis; LDD group, a listed differential diagnosis was provided for the positive D‐dimer; ND group, no description or assessment of the positive D‐dimer result; venous US, lower extremity venous ultrasonography examination during the patients’ hospitalization.