Through two-stage stratified cluster sampling, investigators studied the antiviral treatment rate and the main factors affecting the antiviral treatment in community chronic HBV infection-related liver disease population.

Hepatitis B virus (HBV) infection is a major public health problem worldwide. China has the world's largest burden of HBV infection and will be a major contributor towards the global elimination of hepatitis B disease by 2030. While, the antiviral treatment rate and the main factors affecting the antiviral treatment in community chronic HBV infections is still unknown. In response to the above situation, Sampling applied a two-stage stratified cluster sampling design in 16 Districts and 331 Townships. Investigators wanted to know the one who is eligible for treated criteria based on community in 25 and over years old in Beijing.

Inclusion Criteria:

• older than 25 years old;
• Residents with medical insurance coverage lived in Beijing more than 6 months .

Exclusion Criteria:

• Persons with pacemakers;
• Pregnant women;
• Persons with ascites;
• The one whose wound was not cured at the right upper abdomen

The study population are Residents with medical insurance who were older than 25 years and lived in Beijing more than 6 months. The population who are with pacemakers and ascites, pregnant, and whose wound was not cured at right upper abdomen were excluded.