Table 3.

Area under the receiver operating characteristic curve for skin to deltoid muscle distance.

	Cut-point AUC ROC
Predictor	20 mm	25 mm
Arm circumference (cm)	0.94	0.99
Skinfold thickness (mm)	0.88	0.81
BMI (kg/m2)	0.89	0.97
Body fat (%)	0.90	0.94
Height (m)	0.66	0.66
Weight (kg)	0.81	0.92