<s>[INST] <<SYS>> This is a medical question of type : frequency <</SYS>> How many people are affected by benign recurrent intrahepatic cholestasis ? [/INST] BRIC is a rare disorder. Although the prevalence is unknown, this condition is less common than the related disorder PFIC, which affects approximately 1 in 50,000 to 100,000 people worldwide. </s>