Table 1.
Demographic characteristics of patients with blunt SOI undergoing NOM
| Characteristic | Group; mean ± SD* | p value | ||
|---|---|---|---|---|
| Total, n = 162 | Early, n = 78 | Late, n = 84 | ||
| Age, yr | 42 ± 18 | 43 ± 19 | 41 ± 18 | 0.56 |
| Male sex, no. (%) | 111 (69) | 52 (67) | 59 (70) | 0.63 |
| ISS | 19 ± 9 | 21 ± 9 | 17 ± 9 | 0.016 |
| SBP, mm Hg | 128 ± 22 | 130 ± 24 | 127 ± 19 | 0.38 |
| Heart rate, bpm | 91 ± 18 | 93 ± 16 | 89 ± 19 | 0.13 |
| Temperature, °C | 36.6 ± 0.8 | 36.4 ± 0.8 | 36.6 ± 0.9 | 0.21 |
| Organ injury | ||||
| Spleen, no. (%) | 97 (60) | 42 (54) | 55 (66) | 0.13 |
| Median grade (IQR) | 2 (1–3) | 2 (1–3) | 2 (2–4) | 0.002 |
| High grade, no. (%) | 38 (24) | 11 (14) | 27 (32) | 0.007 |
| Liver, no. (%) | 57 (35) | 26 (33) | 31 (37) | 0.63 |
| Median grade (IQR) | 2 (1–3) | 2 (1–3) | 2 (1–3) | 0.93 |
| High grade, no. (%) | 19 (12) | 9 (12) | 10 (12) | 0.94 |
| Kidney, no. (%) | 31 (19) | 18 (23) | 13 (16) | 0.22 |
| Median grade (IQR) | 1 (1–2) | 1 (1–2) | 1 (1–2) | 0.95 |
| High grade, no. (%) | 7 (4) | 2 (3) | 5 (6) | 0.45 |
| Combined injuries, no. (%) | 23 (14) | 11 (14) | 12 (14) | 0.97 |
bpm = beats per minute; IQR = interquartile range; ISS = injury severity score; NOM = nonoperative management; SBP = systolic blood pressure; SD = standard deviation; SOI = solid organ injury.
*
Unless indicated otherwise.