Effects of patient factors on noninvasive liver stiffness measurement using acoustic radiation force impulse elastography in patients with chronic hepatitis C

Table 3 Three multiple linear regression models to identify independent significant factors that explain liver stiffness

Variable	Model 1			Model 2			Model 3
Variable	B	SE	P	B	SE	P	B	SE	P
Age, year	-.003	.004	.512	-.004	.004	.353	-.004	.004	.366
Male gender	-.193	.084	.024	-.194	.083	.020	-.124	.085	.147
BMI, kg/m²	.032	.013	.013	.036	.012	.005	.026	.012	.041
INR	.972	.572	.092	.890	.564	.117	1.146	.573	.048
Platelet, x10⁹/L	-.003	.001	.002	-.003	.001	.003	-.002	.001	.007
METAVIR
F2	.089	.113	.430	.049	.113	.666	.123	.114	.284
F3	.739	.154	<.001	.670	.155	<.001	.670	.161	<.001
F4	.989	.168	<.001	.954	.165	<.001	.892	.171	<.001
ALT/ULN
≧1<2x	.307	.110	.006
≧2<3x	.429	.122	.001
≧3	.523	.133	<.001
ActiTest A score				.717	.163	<.001
METAVIR A
A1							.189	.100	.061
A2-3							.551	.144	<.001
R²		.661			.662			.651
adjusted R²		.629			.636			.620

Variable references: female gender, METAVIR F1, ALT/ULN <1x, METAVIR A0; ALT, serum alanine aminotransferase; B, coefficient; INR, international normalized ratio of prothrombin time; SE, standard error of coefficient; ULN, upper limit of normal.

ISSN: 1471-230X