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. Author manuscript; available in PMC: 2013 Mar 1.
Published in final edited form as: Hepatology. 2012 Jan 31;55(3):676–684. doi: 10.1002/hep.24732

Figure 1. Study schema.

Figure 1

Of the 1,602 acute liver failure (ALF) patients in the US ALF Study Group, there were 105 hepatitis B virus-related ALF (HBV-ALF) patients identified. Eighteen were excluded: 2 co-infected with hepatitis C virus, one determined to have hepatocellular carcinoma and 15 whom we were unable to define as either acute or chronic. Sixty were identified as AHBV-ALF of whom 47 had sera collected on admission and 14 had sera collected serially up to the 4th day. Twenty-seven patients were identified as CHBV-ALF; 9 appeared to show spontaneous exacerbation (non-immunosuppressed CHBV-ALF) and 18 were considered immunosuppressed; admission and serial sera over 4 days in these groups are also listed.