From: Based on CT at the third lumbar spine level, the skeletal muscle index and psoas muscle index can predict osteoporosis
AUC
95% confidence interval
P value
SMI (cm2/m2)
0.400
0.312-0.488
0.024
PMI (cm2/m2)
0.327
0.244-0.410
< 0.001
VFI (cm2/m2)
0.472
0.386-559
0.559
SFI (cm2/m2)
0.496
0.409-0.583
0.929
VSR
0.482
0.397-0.567
0.693