Table 4.

The ability of PhA to identify low SMD, low SMI, and low SMI combined with low SMD.

PhA	Low SMI (n = 56)		Low SMD (n = 136)		Low SMI + low SMD (n = 51)
	AUC	AUC	AUC	AUC	AUC	AUC
	Male	Female	Male	Female	Male	Female
	(95% CI)	(95% CI)	(95% CI)	(95% CI)	(95% CI)	(95%CI)
	0.772 (0.684–0.860)	0.784 (0.672–0.895)	0.829 (0.758–0.899)	0.812 (0.685–0.939)	0.801 (0.719–0.883)	0.773 (0.654–0.893)

95% CI = 95% confidence interval, AUC = area under curve, PhA = phase angle, SMI = skeletal muscle area index, SMD = skeletal muscle density.