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. 2017 Apr 17;12(4):e0175747. doi: 10.1371/journal.pone.0175747

Table 2. Univariate and multivariate analyses for interobserver differences in liver stiffness.

	Univariate			Multivariate (R² = 0.254)
	B value	SD	P value	B value	SD	P value
Age	0.002	0.001	0.156	-0.001	0.001	0.419
Sex	0.016	0.029	0.584
Cholesterol	0	0	0.61
ALT	-0.001	0.001	0.395
Body mass index	0.01	0.004	0.020	-0.005	0.006	0.403
Waist circumference	0.004	0.002	0.019	-0.001	0.002	0.742
SD^M	0.122	0.019	<0.001	0.132	0.024	<0.001
Difference of SD^M	0.029	0.034	0.402
ROI^M	-0.326	0.076	<0.001	-0.187	0.008	0.021
Difference of ROI^M	0.222	0.084	0.009	0.071	0.083	0.394

SD: standard deviation; ALT: alanine transaminase; SD^M: mean value of standard deviations; ROI^M: mean diameter of the regions of interest.