Table 1

 Demographic and baseline characteristics of the patients in the three groups who received peginterferon alpha-2b (PEG-IFN-α-2b) plus ribavirin for 24, 36, or 48 weeks

ParameterGroup A (24 weeks) (n = 95)Group B (36 weeks) (n = 96)Group C (48 weeks) (n = 96)
Liver histology was evaluated according to Ishak and colleagues.21
BMI, body mass index; ALT, alanine transaminase; AST, aspartate transaminase.
*p values were calculated using the Mann-Whitney U test for all. Statistically significant difference were considered when p values were greater than 0.05.
Sex (M/F)49/4651/4550/46
Age (y) (mean (SD))41.6 (8.1)43.9 (9.2)41.2 (7.6)
Mode of infection
    Occupational exposure334032
    Drug use221921
    Blood transfusion81411
    Sexual315
    Unknown292227
Body weight (kg)
    <85 (n(%))87 (92)89 (94)86 (90)
    >85 (n(%))8 (8)7 (6)10 (10)
BMI (kg/m2)25.7 (5.3)25.6 (4.1)26.5 (5.1)
Total bilirubin (mg/dl) (mean (SD))1.9 (1.7)2.1 (0.95)2.8 (1.2)
Mean ALT (U/l) (mean (SD))133.5 (8.9)129.5 (14.3)136.2 (13.5)
Mean AST (U/l) (mean (SD))105.5 (17.3)114.3 (14.2)103.5 (14.8)
Mean RNA titre (106 copies/ml) (mean (SD))2.8 (0.9)2.7 (1.1)2.8 (0.8)
Liver histology
    Inflammation (grade) (mean (SD))8.2 (2.8)7.6 (2.3)9.1 (1.6)
    Fibrosis (stage) (mean (SD))1.8 (0.8)2.3 (0.9)2.1 (1.2)