Disease progression in chronic hepatitis C patients with normal alanine aminotransferase levels

Figure 1 Incidence of disease progression according to serum alanine aminotransferase levels. There was an increase in the incidence of disease progression along with an increase in serum alanine aminotransferase (ALT) values for males (A) and for females (B). White, gray and black bars represent patients with ALT levels < 20 IU/L, 20-29 IU/L, and 30-39 IU/L, respectively.

Figure 2 Cumulative incidence of disease progression according to alanine aminotransferase levels. The incidence rate differed between patients with “high-normal” and “low-normal” alanine aminotransferase (ALT) levels. A: Males; B: Females.

Figure 3 Cumulative incidence of disease progression according to changes in alanine aminotransferase levels. The incidence rate differed among patients who exhibited persistently “low-normal” alanine aminotransferase (ALT) levels or “high-normal” ALT levels and patients who exhibited ALT elevation (> 41 IU/L) during follow-up.