Table 4.

Independency of muscle measurements and ASMI.

	ASMI (kg/m2)
Measurement	model 1		model 2		model 3		model 4		model 5
	β	P	β	P	β	P	β	P	β	P
Thigh muscle CSA (mm2)	0.550	<0.001	0.414	<0.001	0.573	<0.001	0.407	<0.001	0.364	0.001
L3 trunk muscle CSA (mm2)	0.635	<0.001	0.509	<0.001	0.674	<0.001	0.525	<0.001	0.428	<0.001
G.Med/MinM CSA (mm2)	0.602	<0.001	0.471	<0.001	0.622	<0.001	0.468	<0.001	0.342	0.003
G.MaxM CSA (mm2)	0.569	<0.001	0.420	<0.001	0.587	<0.001	0.411	<0.001	0.315	0.004
Thigh muscle PDFF (%)	-0.363	0.001	-0.341	<0.001	-0.356	0.002	-0.321	0.001	-0236	0.011
L3 trunk muscle PDFF (%)	-0.305	0.007	-0.313	0.001	-0.323	0.012	-0.303	0.005	-0.259	0.010
G.Med/MinM PDFF (%)	-0.221	0.056	-0.246	0.012	-0.216	0.098	-0.218	0.048	-0.193	0.055
G.MaxM PDFF (%)	-0.193	0.095	-0.248	0.012	-0.176	0.154	-0.218	0.036	-0.156	0.109

β is the regression coefficient. Values of P < 0.05 are marked in bold.

L3 trunk, third lumbar trunk; G.Med/MinM, gluteus minimus and medius muscle; G.MaxM, gluteus maximus muscle; CSA, muscle cross-sectional area; PDFF, proton-density fat-fraction.

model 1, unadjusted. model 2, adjusted for BMI. model 3, adjusted for age. model 4, adjusted for age and BMI. model 5, adjusted for age, BMI, albumin, predialysis BUN, predialysis creatinine, and phosphorus.