Table 1

Demographic features of patients with at least one liver biopsy

CharacteristicTotal
IVDU, intravenous drug use.
No of patients (%)1606
    Males940 (58.5)
    Females666 (41.5)
Age at infection (n=917)
    Mean (SD)27.7 (11.8)
    Median24 (0–72)
Necroinflammatory score (Ishak)
    Mean (SD)4.48 (2.1)
    Median4 (0–11)
Fibrosis score (Ishak)
    Mean (SD)2.72 (1.7)
    Median2 (0–6)
Duration infection to 1st biopsy
    Mean (SD)15.1 (9.9)
    Median14 (0–57)
Rate (fibrosis units/year)
    Mean (SD)0.39 (1.28)
    Median0.17 (0–6)
Risk factors (%)
    Unknown622 (43.8)
    Blood433 (27.8)
    IVDU430 (26.8)
    Multiple25 (1.6)
Alcohol consumption (units/week) (%)
    Unknown377 (23.5)
    Nil799 (49.8)
    <20256 (15.9)
    20–4062 (3.9)
    40+112 (9.1)
Ethnic origin (%)
    Caucasian1400 (87.2)
    Non-Caucasian206 (12.8)
Viral genotype (%)
    1652 (40.6)
    Non-1330 (20.5)
    Unknown624 (38.9)