Table 1 Characteristics of the 97 included patients
Variable | All patients (n = 97) | Patients with false-negative FAST (n = 40) | Patients with true-positive FAST (n = 57) | P value |
|---|---|---|---|---|
Age (years), median ± IQR (range) | 34.0 ± 34.0 (6.0–89.0) | 44.5 ± 46.0 (10.0–89.0) | 27.0 ± 29.0 (6.0–86.0) | 0.005 |
Male gender, n (%) | 59 (60.8) | 21 (52.5) | 38 (66.7) | 0.206 |
Blunt abdominal trauma, n (%)a | 94 (96.9) | 39 (97.5) | 55 (96.5) | 0.312 |
Code red level of urgency, n (%)b | 45 (45.9) | 15 (37.5) | 30 (52.6) | 0.239 |
Low hemoglobin levels, n (%)a | 54 (55.7) | 16 (40.0) | 38 (66.7) | 0.015 |
Heart rate (beats per minute), mean ± SD (range) | 93 ± 20 (50–155) | 94 ± 19 (57–155) | 92 ± 21 (50–133) | 0.748 |
Systolic blood pressure (mmHg), mean ± SD (range) | 116 ± 22 (66–166)c | 121 ± 20 (85–160)d | 112 ± 23 (66–166)e | 0.498 |
Class 1 shock index (no shock), n (%) | 15 (15.5) | 7 (17.5) | 8 (14.0) | 0.195 |
Class 2 shock index (mild shock), n (%) | 57 (58.8) | 24 (60) | 33 (57.9) | |
Class 3 shock index (moderate shock), n (%) | 19 (19.6) | 9 (22.5) | 10 (17.5) | |
Class 4 shock index (severe shock), n (%) | 6 (6.2) | - | 6 (10.5) | |
Extra-abdominal injury, n (%) | 75 (77.3) | 33 (82.5) | 42 (73.7) | 0.337 |
Time between FAST and abdominal CT (minutes), median ± IQR (range)b | 28.5 ± 31 (7–4337) | 31.5 ± 84 (7–4337) | 25 ± 23.5 (7–270) | 0.029 |
Hospitalization (days), median ± IQR (range) | 12.0 ± 17.0 (0.0–70.0) | 12.0 ± 16 (0.0–70.0) | 12.0 ± 19.0 (0.0–59.0) | 0.949 |