Abstract
The level of alanine aminotransferase (ALT) is a marker of hepatitis B severity and response to treatment. However, measurements of ALT level may be of limited use during the immune clearance phase of chronic hepatitis B (CHB) and can be affected by age, weight, and concomitant liver disease. We performed a literature review to determine the proportion of CHB patients with ALT levels of 1- to 2-fold the upper limit of normal who also had significant underlying liver fibrosis (stage ≥2). We performed a Medline search of original articles published before June 2012, and their references; we also searched abstracts from the 2010 and 2011 annual meetings of the American Association for the Study of Liver Diseases and the 2011 and 2012 Digestive Disease Weeks. Studies were included that had 20 or more consecutive treatment-naive CHB patients with 6 months or more of follow-up evaluation, histologic data, and levels of ALT 1- to 2-fold the upper limit of normal. Study heterogeneity was assessed by a Forest plot and Q and I(2) analyses. Sensitivity was measured using 1-study removed analysis. Our analysis included 8 articles and 1 abstract, comprising 683 patients. Based on random-effects modeling, 48% of patients had stage 2 or highe...Continue Reading
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