Fig. 2

Distribution of liver stiffness according to age, HCV status, and sex. The figure indicates how the increased risk of liver disease, indicated by liver stiffness ≥ 10 kPa, is distributed between age groups, HCV infection status, and sex. The Pearson χ² test indicates that there were significant differences between age groups (χ² = 33.8, p < 0.001) and by HCV infection status (χ² = 9.4, p < 0.002), but not between females and males (χ² = 3.1, p < 0.078)