Table 3. Regression analyses for psoas muscle z-score in consideration with other variables.

		Univariate regression analysis			Multivariate regression analysis
		Estimate (β)	Standard error	p-value	Estimate (β)	Standard error	p-value
Psoas muscle area z-score
	Age (years)	-0.056	0.014	<0.001	-0.024	0.014	0.078
	Sex
	Female	Reference			Reference
	Male	0.468	0.123	<0.001	0.239	0.118	0.044
	BMI z-score	0.289	0.043	<0.001	0.223	0.058	<0.001
	Liver fat (%)	0.014	0.004	0.001	-0.001	0.004	0.889
Paraspinal muscle fat
	Age (years)	-0.016	0.027	0.540	0.017	0.029	0.580
	Sex
	Female	Reference			Reference
	Male	-0.106	0.238	0.655	-0.368	0.250	0.143
	BMI z-score	0.218	0.090	0.016	0.247	0.124	0.048
	Liver fat (%)	0.014	0.007	0.052	0.007	0.009	0.451

BMI body mass index.