Research Article

Assessment of Steatosis and Fibrosis in Liver Transplant Recipients Using Controlled Attenuation Parameter and Liver Stiffness Measurements

Table 1

Comparison of groups with and without steatosis (elevated CAP ≥238 dB).

VariablesSteatosis CAP ≥238 dB (n = 120)No steatosis CAP <238 dB (n = 55) value

Age at LT, years (IQR)55 (50–61)57 (43–60)0.286
Age at TE, years (IQR)61 (54–65)60 (46–65)0.131
Donor age, years60 (48–70)57 (41–68)0.596
Male, % (n)75.83 (91)52.72 (29)0.006

Cause of liver disease, % (n)
 Autoimmune liver disease6.67 (8)0.2 (11)0.005
 NAFLD0.83 (1)0.0 (0)
 Alcoholic liver disease37.5 (45)18.18 (10)
 HCV5.0 (6)0.0 (0)
 Others50.0 (60)61.8 (34)

BMI, kg/m2 (IQR)28.76 (23–32)26.67 (24–30)0.402

BMI category, % (n)
 Normal <2537.5 (45)36.4 (20)0.246
 Overweight 25–29.923.3 (28)40.0 (22)
 Obese ≥3039.2 (47)23.6 (13)

Donors BMI, kg/m2 (IQR)26.23 (24–28)26.03 (24–28)0.911

Donors BMI category, % (n)
 Normal <2540.0 (48)34.54 (19)0.627
 Overweight 25–29.944.2 (53)52.73 (29)
 Obese ≥3015.8 (19)12.73 (7)

Hypertension, % (n)69.75 (83)52.73 (29)0.041
Diabetes, % (n)43.70 (52)27.27 (15)0.063
Thrombocytes x109/L167 (135–226)170 (136–217)0.632
Glucose, mmol/L (IQR)6.4 (6–8)5.8 (5–6)<0.001
Total bilirubin, mg/dL (IQR)16 (12–21)15 (12–26)0.558
ALT, U/L (IQR)29 (20–39)26 (17–34)0.186
AST, U/L (IQR)28 (23–40)28 (22–37)0.598
GGT, U/L (IQR)41 (24–94)31 (17–84)0.041
Triglyceride, mmol/L (IQR)1.37 (1.1–2.0)1.03 (0.8–1.4)<0.001
Total cholesterol, mmol/L (IQR)5.1 (4.5–5.9)4.7 (4.1–5.5)0.025
LDL, mmol/L (IQR)3.1 (2.6–3.7)2.8 (2.1–3.5)0.016
HDL, mmol/L (IQR)1.3 (1.1–1.6)1.4 (1.2–1.7)0.033
CRP, mg/L (IQR)3.4 (2–6)2.3 (1–4)0.066
LSM, kPa (IQR)7.2 (6.0–9.0)5.8 (4.5–9.4)0.012

Immunosuppression, % (n)
 Tacrolimus67.5 (81)76.4 (42)0.311
 Cyclosporine32.5 (39)21.8 (12)
 Prednisone3.3 (4)7.3 (4)
 mTOR inhibitor(0)1.8 (1)
 Mycophenolate mofetil70.0 (84)65.5 (36)
 Azathioprine(0)5.5 (3)

Time from LT to TE, years (IQR)4 (3–6)3 (2–5)0.033

LT, liver transplantation; NAFLD, nonalcoholic fatty liver disease; HCV, hepatitis C virus infection; BMI, body mass index; AST, serum aspartate aminotransferase; ALT, alanine aminotransferase; GGT, gamma-glutamyl transferase; CRP, C-reactive protein; LSM, liver stiffness measurement; TE, transient elastography; CAP, controlled attenuation parameter.