The Updated Natural History Model for Primary Biliary Cholangitis This calculator is intended for use by health care providers. The results should not be used alone to determine medical treatment. This tool is a statistical model and is not a substitute for an individual treatment plan developed by a health care provider with personal knowledge of a specific patient. Factors such as medical history and the health care provider’s experience, knowledge, and training must also be considered. Results should be discussed with patients when presenting prognoses or treatment recommendations. In the following model, short-term survival probability of a patient with primary biliary cholangitis is estimated based on repeated observation. Please enter data in the corresponding boxes. How old is the patient? (years) What is the bilirubin? (mg/dl) What is the albumin? (g/dl) What is the prothrombin time? (seconds) Does the patient have peripheral edema? No Yes Is the patient on diuretic therapy? No Yes Risk score: Estimated Probability of Survival (%) Time 0 3 Mos. 6 Mos. 9 Mos. 12 Mos. 15 Mos. 18 Mos. 24 Mos. 100 ITT-20434724 Medical Professionals The Updated Natural History Model for Primary Biliary Cholangitis