Applicability and variability of liver stiffness measurements according to probe position

Table 1 Characteristics of included and non-included patients n (%)

Characteristics	Included	Non-included
Number of patients	442	26
Mean age (SE)	49 (1)	50 (2)
Male	293 (66)	17 (65)
Ethnic origin
Caucasian	285 (65)	17 (65)
Asian	36 (8)	2 (8)
North African	43 (10)	1 (4)
Other African	78 (17)	6 (23)
Anthropometric data
Height (m)	1.71 (0.05)	1.70 (1.91)
Weight (kg)	71.7 (0.7)	69.7 (2.4)
BMI (kg/m2)	24.4 (0.2)	24.1 (0.8)
Abdominal fold mm	21.7 (0.5)	26.1 (3.2)
Thoracic fold mm	13.1 (0.3)	13.6 (1.1)
Waist circumference cm	84 (1)	83 (2)
Daily alcohol ≥ 30 g/d	18 (7)	2 (11)
Diagnosis
HCV	200 (45)	13 (50)
HBV	79 (18)	6 (23)
NAFLD	59 (13)	1 (4)
HIV coinfection	50 (11)	4 (15)
ALD	11 (3)	0 (0)
Other/unknown	93 (21)	2 (8)
Biochemistry
ALT (IU/L)	58 (3)	151 (100)
AST (IU/L)	48 (2)	45 (6)
	n = 416	n = 16
Cholesterol (mmol/L)	4.70 (0.05)	4.50 (0.34)
	n = 381	n = 14
Glucose (mmol/L)	5.34 (0.07)	5.28 (0.16)
	n = 404	n = 16
Triglycerides (mmol/L)	1.21 (0.06)	1.10 (0.19)
	n = 381	n = 14
FibroTest	0.40 (0.01)	0.51 (0.06)
	n = 442	n = 18
ActiTest	0.32 (0.01)	0.39 (0.07)
	n = 442	n = 18
SteatoTest	0.33 (0.01)	0.27 (0.06)
	n = 378	n = 12