APACHE system is better than Ranson system in the prediction of severity of acute pancreatitis.

Background: It has been suggested that addition of obesity score to the APACHE-II system can lead to more accurate prediction of severity of acute pancreatitis. However there is scanty information on the usefulness of the combined APACHE-O scoring system in Asian patients. This study aimed to compare the accuracy of Ranson, APACHE-II and APACHE-O systems in assessing severity of acute pancreatitis in a local Chinese population.