Table 2.
Selected characteristics of the study population by cTnI levels
| Characteristics* | < 0.06 ng/mL (401) | ≥ 0.06 ng/mL (87) | ≥ 0.21 ng/mL (92) | P-value |
|---|---|---|---|---|
| Age (y) | 55.5±21.1 | 61.7 ± 20.5 | 54.8 ± 21.2 | 0.034 |
| ≤ 65 y | 257 (64.1) | 48 (55.2) | 61 (66.3) | |
| > 65 y | 144 (35.9) | 39 (44.8) | 31 (33.7) | 0.232 |
| Sex | ||||
| Male | 108 (27.0) | 29 (33.3) | 32 (34.8) | |
| Female | 292 (73.0) | 58 (66.7) | 60 (65.2) | 0.218 |
| Injury type | ||||
| MVC | 47 (11.7) | 10 (11.5) | 3 (3.3) | |
| Fall | 148 (36.9) | 34 (39.1) | 28 (30.4) | |
| Other blunt | 176 (43.9) | 34 (39.1) | 41 (44.6) | |
| Penetrating | 23 (5.7) | 7 (8.0) | 13 (14.1) | |
| Other | 7 (1.8) | 2 (2.3) | 7 (7.6) | 0.003 |
| ISS | 25 (17, 26) | 25 (20, 26) | 25 (20, 26) | 0.369 |
| Admission GCS score | 4 (3, 7) | 3 (3, 6) | 3 (3, 5.5) | < 0.001 |
| 3–4 | 202 (50.4) | 58 (66.7) | 65 (70.6) | |
| 5–8 | 199 (49.6) | 29 (33.3) | 27 (29.4) | <0.001 |
| Coded AIS injuries | ||||
| Subarachnoid hemorrhage | 240 (59.8) | 54 (62.1) | 61 (66.3) | 0.511 |
| Intraventricular hemorrhage | 97 (24.2) | 24 (27.6) | 30 (32.6) | 0.237 |
| Cerebral hematoma | 293 (73.1) | 75 (86.2) | 65 (70.7) | 0.024 |
| Cerebral contusion | 216 (53.9) | 35 (40.2) | 40 (43.5) | 0.026 |
| Cerebral edema | 183 (45.6) | 48 (55.2) | 60 (65.2) | 0.002 |
| Skull fracture | 164 (40.9) | 36 (41.4) | 33 (35.9) | 0.654 |
| Length of ICU stay (d) | 2.9 (0.2, 9.4) | 1.7 (0.0, 10.0) | 2.5 (0.5, 8.7) | 0.532 |
| Length of hospital stay (d) | 4.7 (1.5, 11.8) | 2.2 (0.5, 11.6) | 2.9 (1.1, 10.8) | 0.106 |
| Surgical intervention | 124 (30.9) | 25 (28.7) | 32 (34.8) | 0.667 |
| Preexisting cardiac diseases | 27 (6.7) | 11 (12.6) | 9 (9.8) | 0.152 |
| Mortality | 167 (41.6) | 59 (67.8) | 61 (66.3) | <0.001 |
*
Data presented as n (%), mean ± standard deviation, or median (interquartile range) as appropriate.