Classification and Comparison of Early-onset and Late-onset Idiopathic Chronic Pancreatitis

Classification of early-onset idiopathic chronic pancreatitis (EOICP) and late-onset idiopathic chronic pancreatitis (LOICP) was proposed based on bimodal distribution of age at onset of idiopathic chronic pancreatitis (ICP). However, studies of larger populations prove it may be normal distribution. Therefore, the aim of the study is to find what the distribution of age at onset of ICP is and whether the classification of EOICP and LOICP is meaningful.