Research Article

Combined Liver Stiffness and Α-fetoprotein Further beyond the Sustained Virologic Response Visit as Predictors of Long-Term Liver-Related Events in Patients with Chronic Hepatitis C

Table 4

Cox regression analysis for prediction of LREs (n = 12, multivariate analysis) after year 3 post-SVR.

Variablesn/nCrude HR(95% CI) valueAdjusted HR(95% CI) value

Age, ≥65 vs. <65 years (TW0)15/4021.0550.997–1.1170.0642.3620.643–8.6750.195
Sex, male vs female15/4020.5630.200–1.5830.276
Body mass index, kg/m2 (TW0)15/4021.0540.915–1.2140.467
HCV RNA log10, IU/mL (TW0)15/4021.0001.000–1.0000.430
Genotype, 1 vs non-115/4021.0310.374–2.8450.952
Clinical cirrhosis (TW0)15/4022.4940.702–8.8620.158
AST, U/L (TW0)15/4011.0091.004–1.013<0.001
ALT, U/L (TW0)15/4021.0051.000–1.0090.029
AFP, ng/mL (TW0)15/3950.9970.979–1.0150.729
Albumin, g/dL (TW0)15/3960.3270.098–1.0960.070
Bilirubin, mg/dL (TW0)15/4022.4780.811–7.5740.111
eGFR, mL/min/1.73 m2 (TW0)15/4020.9950.983–1.0080.478
HbA1c, % (TW0)15/3981.0480.627–1.7540.857
WBCs, /μL (TW0)15/4020.9990.999–1.0000.010
Hemoglobin, g/dL (TW0)15/4020.7800.550–1.1050.163
Platelets, ×103/μL (TW0)15/4020.9830.972–0.9950.004
INR (TW0)15/401213.5790.375–12000.098
AST, U/L (SVR)15/4011.0221.009–1.0360.001
ALT, U/L (SVR)15/4021.0090.994–1.0240.236
AFP, ng/mL (SVR)15/3921.0501.024–1.076<0.001
AFP, ng/mL (Y3PSVR)13/3061.0211.011–1.030<0.0011.0171.001–1.0340.034
AFP decline, % (from SVR to Y3PSVR)13/3050.9300.897–0.963<0.001
Albumin, g/dL (SVR)15/3941.4820.279–7.8800.645
Bilirubin, mg/dL (SVR)15/3981.1810.309–4.5110.808
eGFR, mL/min/1.73 m2 (SVR)15/3940.9930.980–1.0060.315
HbA1c, % (SVR)14/3650.7890.362–1.7200.552
WBC, /μL (SVR)15/3991.0000.999–1.0000.081
Hemoglobin, g/dL (SVR)15/4000.8940.633–1.2600.522
Platelet, ×103/μL (SVR)15/4000.9840.973–0.9950.0040.9940.982–1.0050.276
INR (SVR)15/38014.9200.265–8380.189
LS, m/s (TW0)13/2902.1531.093–4.2410.027
LS, m/s (SVR)12/2552.9011.611–5.223<0.001
LS, m/s (Y3PSVR)14/3693.2081.631–6.3060.0013.9802.085–7.597<0.001
LS decline, % (from SVR to Y3PSVR)11/2390.3800.031–4.6690.450
APRI (TW0)15/4011.3301.150–1.537<0.001
APRI (SVR)15/3992.0161.466–2.773<0.001
FIB-4 (TW0)15/4011.3031.162–1.462<0.001
FIB-4 (SVR)15/3991.5441.319–1.806<0.001

n/n indicates the number of events and the sample size (cases with missing values were excluded; 118 cases were censored before the first event after Y3PSVR; 332 cases entered the multivariate analysis). Decline = (preceding value minus next values)/preceding value. AFP, α-fetoprotein; ALT, alanine aminotransferase; APRI, aspartate-aminotransferase-to-platelet ratio index; AST, aspartate aminotransferase; CI, confidence interval; eGFR, estimated glomerular filtration rate (Modification of Diet in Renal Disease formula); FIB-4, fibrosis-4 index; HbA1c, hemoglobin A1c; HCC, hepatocellular carcinoma; HCV, hepatitis C virus; HR, hazard ratio; INR, international normalized ratio; LRE, liver-related event; LS, liver stiffness; SVR, sustained virologic response (visit); TW0, treatment baseline; WBC, white blood cell; Y3PSVR, year 3 post-SVR.