The majority of patients younger than 35 years old (85.4%) were anti-HBc negative, whereas the corresponding percentages for patients 35–55 years old and for patients older than 55 years were 61.8% and 61.4%, respectively. Table 4 summarizes the clinical and histological data among anti-HBc-negative and anti-HBc-positive chronic hepatitis C patients. Here, KRT88P is linked to chronic hepatitis C virus infection.