Table 2.
Diagnostic characteristics of injured elderly patients at ICU admission a
| Characteristics |
All patients |
Sarcopenic |
Nonsarcopenic |
P -value |
|---|---|---|---|---|
| ( N = 149) | ( n = 106) | ( n = 43) | ||
| Age (yr) |
79 (72 to 85) |
80 (73 to 86) |
76 (68 to 83) |
0.007 |
| Sex |
|
|
|
|
| Male (%) |
57 (n = 85) |
67 (n = 71) |
33 (n = 14) |
<0.001 |
| Female (%) |
43 (n = 64) |
33 (n = 35) |
67 (n = 29) |
|
| Mechanism of injury |
|
|
|
|
| MVC (%) |
51 (n = 76) |
47 (n = 50) |
60 (n = 26) |
0.150 |
| Fall (%) |
37 (n = 60) |
45 (n = 48) |
28 (n = 12) |
0.055 |
| Automobile–pedestrian (%) |
4 (n = 6) |
5 (n = 3) |
10 (n = 4) |
0.26 |
| Other (%) |
8 (n = 12) |
3 (n = 5) |
2 (n = 1) |
0.73 |
| ISS score |
19 (14 to 26) |
20 (14 to 29) |
17 (13 to 24) |
0.17 |
| Low-energy mechanism (%) |
45 (n = 67) |
50 (n = 53) |
30 (n = 13) |
0.026 |
| Head AIS score |
3 (3 to 4) |
4 (3 to 4) |
3 (3 to 4) |
0.083 |
| Chest AIS score |
3 (3 to 4) |
3 (3 to 3) |
3 (3 to 3) |
0.14 |
| Abdomen AIS score |
2 (2 to 3) |
2 (2 to 3) |
3 (2 to 3) |
0.51 |
| ED SBP (mmHg) |
137 (110 to 161) |
136 (108 to 158) |
142 (124 to 161) |
0.21 |
| ED temperature (°F) |
97.2 (96.4 to 98.1) |
97.2 (96.3 to 98.1) |
97.3 (96.9 to 98.2) |
0.24 |
| ED base value |
−1.5 (−5 to 2) |
−1.5 (−4 to 2) |
−1.5 (−6.5 to 2.5) |
0.94 |
| ED hemoglobin (g/dl) |
9.7 (7.6 to 12.6) |
11.8 (7.7 to 13.1) |
7.8 (7.4 to 9.7) |
0.016 |
| ED INR |
1.28 (1.09 to 1.55) |
1.24 (1.08 to 1.52) |
1.43 (1.16 to 2.08) |
0.18 |
| ED albumin (g/dl) | 3.4 (3.2 to 3.8) | 3.4 (3.1 to 3.8) | 3.5 (3.2 to 3.6) | 0.63 |
aAIS = Acute Injury Scale score, ED = Emergency Department, F = Fahrenheit, INR = international normalized ratio, ISS = Injury Severity Scale score, MVC = motor vehicle collision, SBP = systolic blood pressure. Data are presented as medians (interquartile ranges). The following data are presented as medians (interquartile ranges): age, ISS score, head AIS score, chest AIS score, abdomen AIS score, ED SBP, ED body temperature, ED base value, ED hemoglobin, ED INR and ED albumin. P-values depict statistical differences between sarcopenic and nonsarcopenic patients, with statistical significance set at P ≤ 0.05.