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

Table 5 Multivariate linear regression model predicting ventilator-free and ICU-free days after controlling for age, sex and Injury Severity Scale score ^a

Measurement	Coefficient of correlation	95% CI	P-value
Ventilator-free days
Muscle index	0.060	−0.025 to 0.126	0.19
TAT index	−0.004	−0.026 to 0.017	0.71
Albumin	5.49	−0.648 to 11.618	0.078
BMI	−0.043	−0.49 to 0.40	0.85
ICU-free days
Muscle index	0.032	−0.037 to 0.101	0.36
TAT index	−0.002	−0.022 to 0.017	0.82
Albumin	5.32	0.032 to 10.61	0.049
BMI	−0.065	−0.47 to 0.34	0.75

^aBMI = body mass index, CI = confidence interval, TAT = total adipose tissue, VAT = visceral adipose tissue. Statistical significance was accepted at P ≤ 0.05.

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