Table 2 Univariate analysis of muscle thickness, echo intensity and echo intensity standard deviation (SD) and z-scores, and area under the receiver operating characteristic curve (ROC–AUC)
No ICU-AW | ICU-AW | P value | ROC–AUC (95% CI) | |
|---|---|---|---|---|
Thickness | ||||
BB thickness [mean cm (SD)] | 2.6 (0.6) | 2.2 (0.5) | 0.002* | 68.0 (55.4–80.7) |
FCR thickness [mean cm (SD)] | 1.1 (0.2) | 1.0 (0.2) | 0.035* | 64.5 (50.4–78.7) |
RF thickness [mean cm (SD)] | 3.1 (0.9) | 2.8 (0.8) | 0.258 | 55.6 (41.8–69.4) |
TA thickness [mean cm (SD)] | 2.2 (0.4) | 2.1 (0.4) | 0.558 | 54.3 (40.3–68.3) |
Z-score thickness | ||||
BB z-score thickness [mean (SD)] | 0.1 (0.6) | −0.3 (0.5) | 0.011* | 66.7 (53.7–79.6) |
FCR z-score thickness [mean (SD)] | −0.7 (1.2) | −1.3 (0.9) | 0.033* | 65.5 (51.3–79.7) |
RF z-score thickness [mean (SD)] | −0.5 (0.7) | −0.6 (0.8) | 0.656 | 53.2 (39.4–67.1) |
TA z-score thickness [mean (SD)] | −0.4 (0.7) | −0.4 (1.0) | 0.818 | 51.3 (37.5–65.1) |
Echo intensity | ||||
BB absolute echo intensity [mean gray scale level (SD)] | 76.2 (14.1) | 79.1 (16.4) | 0.434 | 57.6 (44.0–71.3) |
FCR absolute echo intensity [mean gray scale level (SD)] | 62.3 (12.6) | 67.7 (13.6) | 0.095 | 63.2 (49.6–76.9) |
RF absolute echo intensity [mean gray scale level (SD)] | 77.2 (17.0) | 83.9 (14.8) | 0.094 | 60.2 (46.4–74.0) |
TA absolute echo intensity [mean gray scale level (SD)] | 88.6 (12.4) | 94.6 (12.1) | 0.046* | 60.8 (47.4–74.1) |
Z-score echo intensity | ||||
BB z-score echo intensity [mean (SD)] | 0.5 (1.4) | 0.7 (1.9) | 0.519 | 56.3 (42.8–69.9) |
FCR z-score echo intensity [mean (SD)] | 1.4 (1.6) | 1.9 (2.0) | 0.207 | 59.2 (45.2–73.2) |
RF z-score echo intensity [mean (SD)] | 1.0 (1.6) | 1.6 (1.8) | 0.137 | 58.7 (45.0–72.4) |
TA z-score echo intensity [mean (SD)] | 1.0 (1.2) | 1.5 (1.4) | 0.118 | 59.4 (45.9–72.9) |
Echo intensity SD | ||||
BB echo intensity SD [mean gray scale level(SD)] | 29.0 (4.0) | 28.5 (4.4) | 0.585 | 53.3 (39.6–67.0) |
FCR echo intensity SD [mean gray scale level(SD)] | 21.3 (3.1) | 20.8 (3.9) | 0.573 | 56.2 (42.2–70.2) |
RF echo intensity SD [mean gray scale level(SD)] | 24.2 (3.3) | 23.5 (3.5) | 0.398 | 55.9 (42.0–69.8) |
TA echo intensity SD [mean gray scale level (SD)] | 25.8 (3.6) | 26.2 (3.9) | 0.698 | 54.4 (40.5–68.3) |
Z-score echo intensity SD | ||||
BB z-score echo intensity SD [mean (SD)] | 0.3 (1.5) | 0.1 (1.5) | 0.746 | 53.3 (39.6–67.0) |
FCR z-score echo intensity SD [mean (SD)] | 0.8 (1.4) | 0.6 (1.7) | 0.716 | 55.0 (41.0–69.1) |
RF z-score echo intensity SD [mean (SD)] | 0.1 (1.6) | 0.04 (1.4) | 0.890 | 54.2 (36.9–65.5) |
TA z-score echo intensity SD [mean (SD)] | −0.3 (1.1) | −0.2 (1.4) | 0.777 | 55.0 (41.1–68.9) |