Japanese Biliary Atresia Registry (JBAR)

JBAR aims to ascertain the current situation and improve the treatment outcomes of biliary atresia. JBAR has been conducted every year since 1989. It is also implemented in accordance with guideline on medical research established by the government, and particular care is taken when handling the personal information of patients.

JBAR Aggregation: Aggregation of initial registrations

• 2022 only (PDF)
• Total number (PDF)
• Type III only (PDF)

JBAR Aggregation: Aggregation of follow-up registrations

• Year 1 (PDF)
• Year 5 (PDF)
• Year 10 (PDF)
• Year 15 (PDF)
• Year 20 (PDF)
• Year 25 (PDF)
• Year 30 (PDF)

JBAR Aggregation: Aggregation of transplant registrations

• 2022 only (PDF)
• Total number (PDF)