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Table 2 Diagnostic characteristics of injured elderly patients at ICU admission a

From: Skeletal muscle predicts ventilator-free days, ICU-free days, and mortality in elderly ICU patients

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
  1. 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.