Bioelectrical impedance vector analysis evaluates cellularity and hydration in cirrhotic patients

Table 3 Distribution of the sample by age group related to phase angle classification, bioelectrical impedance vector analysis quadrants, sex, Child-Turcotte-Pugh score and etiology

Variables1	Age (yr)
	20-39 (n = 11; 5.8%)	40-49 (n = 32; 16.8%)	50-59 (n = 66; 34.7%)	≥ 60 (n = 81; 42.6%)	P value
PA	7.67 ± 2.504	6.68 ± 2.633, 4	5.79 ± 1.613	5.83 ± 2.293	0.014
PA classification					0.007
Good prognosis	11 (100)5	24 (75.0)	43 (65.2)	43 (53.1)
Bad prognosis	0 (0.0)	8 (25.0)	23 (34.8)	38 (46.9)5
BIVA Quadrant classification					0.002
Q1	4 (36.4)	15 (46.9)	36 (54.5)	36 (44.4)
Q2	7 (63.6)5	8 (25.0)	10 (15.2)	11 (13.6)
Q3	0 (0.0)	6 (18.8)	5 (7.6)	16 (19.8)
Q4	0 (0.0)	3 (9.4)	15 (22.7)	18 (22.2)
Gender					0.162
Male	9 (81.8)	22 (68.8)	42 (63.6)	43 (53.1)
Female	2 (18.2)	10 (31.3)	24 (36.4)	38 (46.9)
Child-Turcotte-Pugh					0.194
A	9 (81.8)	18 (56.3)	31 (47.0)	49 (60.5)
B	2 (18.2)	8 (25.0)	17 (25.8)	21 (25.9)
C	0 (0.0)	6 (18.8)	18 (27.3)	11 (13.6)
Etiology					0.030
HCV	1 (9.1)	14 (43.8)	34 (51.5)	41 (50.6)
Alcohol	3 (27.3)	9 (28.1)	16 (24.2)	23 (28.4)
HCV + alcohol	1 (9.1)	4 (12.5)	6 (9.1)	10 (12.3)
Other2	6 (54.5)5	5 (15.6)	10 (15.2)	7 (8.6)

¹Described by mean ± SD or n (%).

²Indicates hepatitis B virus, autoimmune, cholestatic disease, non-alcoholic fatty liver disease, and cryptogenic.

³Numbers with superscript 3 do not differ statistically at 5% significance by Tukey’s test.

⁴Numbers with superscript 4 do not differ statistically at 5% significance by Tukey’s test.

⁵Indicates statistically significant association by the test of the residuals adjusted to 5% of significance. PA: Phase angle; BIVA: Bioelectrical impedance vector analysis; Q1: Quadrant 1; Q2: Quadrant 2; Q3: Quadrant 3; Q4: Quadrant 4; HCV: Hepatitis C virus.