Factors Affecting the Natural Decay of Hepatitis B Surface Antigen in Children with Chronic Hepatitis B Virus Infection during Long-Term Follow-Up

During long-term follow-up, spontaneous HBsAg clearance is most likely to occur in a patient born to a non-HBsAg-carrier mother, is a hepatitis B e antigen-seroconverter, and had an initial HBsAg level ≤1000 IU/mL.