Table 2.

Mean bioelectrical impedance analysis (BIA) results for all patients, and for 90-day survivors and non-survivors separately

Bioimpedance analysis results	All patients (n = 196)	Survivors (n = 166)	Non-survivors (n = 30)	p-value
Resistance (Ω)	459 ± 92	455 ± 89	476 ± 108	0.26
Reactance (Ω)	39.0 ± 11.3	39.8 ± 10.9	34.5 ± 12.7	0.02
Phase angle (°)a	4.9 ± 1.3	5.0 ± 1.3	4.1 ± 1.2	< 0.001

p-values depict the statistical difference between 90-day survivors and non-survivors: independent T-test, equal variances not assumed. ^a Phase angle = arc tangent of (Xc/R)*180°/π