Table 2

 Pre-treatment and on-treatment characteristics in patients with sustained virological response or virological relapse

CharacteristicSustained virological response(n = 139)Virological relapse(n = 155)p Value*(univariate)p Value*(multivariate)
Patients were treated with peginterferon α-2a monotherapy or peginterferon α-2a plus lamivudine. ALT, alanine aminotransferase; HAI, Histological Activity Index; HBV, hepatitis B virus; LAM, lamivudine; PEG-IFNα-2a, peginterferon α-2a; ULN, upper limit of normal range.
*Rates presented are actual rates for each subgroup. p Values are based on univariate or multivariate logistic regression models; †p values are from a separate logistic regression model performed on 254 patients with available baseline HAI scores and including all other characteristics listed above.
Treatment0.770.54
    PEG-IFNα-2a47%46%
    PEG-IFNα-2a+LAM53%54%
Age (years)0.0020.024
    Mean±SD37.9±10.642.0±11.3
Gender
    Male82%83%0.780.40
    Female18%17%
Body weight (kg)0.140.36
    Mean±SD68.7±12.770.9±13.0
Baseline HAI score0.66†0.66†
    Mean±SD8.6±3.58.8±3.5
Baseline ALT0.120.23
    Mean±SD (IU/l)103±9688±66
    >5×ULN19%15%
    >2–5×ULN38%39%
    ⩽2×ULN43%46%
ALT level at week 480.590.36
    >2×ULN15%12%
    ⩽2×ULN85%88%
Peak ALT level weeks 0–48 (IU/l)0.280.26
    Mean±SD51±11053±69
Baseline HBV DNA (log10 copies/ml)0.150.01
    Mean±SD7.1±2.07.5±1.8
HBV DNA at week 480.0080.03
    ⩽400 copies/ml95%83%
    >400–20 000 copies/ml5%18%
HBV genotype<0.0010.006
    A4%7%
    B24%26%
    C50%28%
    D21%39%