Concordance between appendicular skeletal muscle mass measured with DXA and estimated with mathematical models in middle-aged women

Table 4 Cross validation of ASMM estimated with models developed by Lee et al. and Wen et al. with ASMM_DXA (n = 165)

Models		Pearson correlation and regression analysis			Mean (SD) (kg)	Paired sample t test
Models		r	R ²	SEE (kg)	Mean (SD) (kg)	MD/SE (kg)	SD	Range of mean difference (kg)	P value
Lee et al. (2000)	ASM1	0.68*	0.46	2.02	18.36 (3.27)	− 2.97	2.45	− 3.35 to 2.59	< 0.001
Lee et al. (2000)	ASM2	0.90*	0.81	1.18	16.46 (3.01)	− 1.07	1.28	− 1.27 to − 0.87	< 0.001
Wen et al. (2011)	ASM3	0.90*	0.81	1.17	15.44 (2.40)	− 0.05	1.17	− 0.23 to 0.12	0.57
Wen et al. (2011)	ASM4	0.91*	0.82	1.14	14.44 (2.45)	0.94	1.14	0.76 to 1.11	< 0.001

ASMM_DXA ASMM measured with DXA, r Pearson correlation, R² determination coefficient, SEE standard error of estimate, MD mean difference, SE standard error
*Correlations were significant at < 0.001 level

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