Table 1

 Logistic regression analysis on pre-treatment factors and sustained combined response*

Pre-treatment factor†ComparisonOdds ratio‡(95% CI)p Value
Multivariate analyses of all treatment arms (n = 518). LAM, lamivudine; PEG-IFNα-2a, peginterferon α-2a; v, versus.
*Combined ALT normalisation and an HBV DNA level of <20 000 copies/ml after 48 weeks of treatment and 24 weeks of treatment-free follow-up; †ALT at screening was included in the model but was not a significant predictor of response (p = 0.952); ‡each odds ratio adjusted for other variables in the model.
Age10 year decrease1.26 (1.0 to 1.5)0.018
GenderFemale v male1.93 (1.1 to 3.4)0.022
Body weight10 kg increase1.10 (0.9 to 1.3)0.273
Baseline ALT1 log10 unit (IU/l)3.69 (1.7 to 8.1)0.001
increase
HBV DNA1 log10 unit1.28 (1.1 to 1.4)<0.001
(copies/ml) decrease
HBV genotype<0.001
A v B0.42 (0.1 to 1.2)0.097
A v C0.33 (0.1 to 0.9)0.030
A v D0.97 (0.3 to 2.7)0.958
B v C0.79 (0.5 to 1.3)0.344
B v D2.31 (1.3 to 4.2)0.006
C v D2.9 (1.7 to 5.0)<0.001
TreatmentPEG-IFNα-2a v LAM1.84 (1.1 to 3.0)0.014
PEG-IFNα-2a+LAM2.19 (1.3 to 3.6)0.002
v LAM
PEG-IFNα-2a v1.19 (0.8 to 1.9)0.460
PEG-IFNα-2a+LAM
Treatment by0.018
HBV genotype
interaction