Table 1.

ICU-specific cut-off values related to mortality for computed tomography-scan analysis and bioelectrical impedance analysis

	Measurement	Cut-off value	Study population	Related to	AUC
CT-scan analysis
Shibahashi et al. [14▪▪]	L3 psoas-muscle and paraspinal muscle CSA on day of ICU admission	Women: 39.0 cm2 Men: 15.2 cm2	150 elderly (>60y) septic ICU patients	Hospital mortality	Women: 0.72 (0.58–0.88) Men: 0.65 (0.54–0.76)
Weijs et al. [11]	L3 total muscle CSA 1 day before to 4 days after ICU admission	Women: 110 cm2 Men: 170 cm2	240 mixed ventilated ICU patients with ICU stay of >4 days	Hospital mortality	-
Bioelectrical impedance analysis
Thibault et al. [15▪▪]	Phase angle on day 1 of ICU admission	3.49°	931 mixed ICU patients with expected ICU stay of >48 h	28-day mortality	0.63 (0.58–0.67)
Stapel et al. [16▪]	Phase angle <24 h after ICU admission	4.80°	196 mixed ICU patients	90-day mortality	0.70 (0.59–0.80)

Currently, no ICU-specific cut-off values for musculoskeletal ultrasound exist. AUC, area under the receiver-operating characteristic curve; CSA, cross-sectional area; L3, third lumbar vertebra.