Objective To investigate the distribution law of diseases among 155,508 inpatients from 2012 to2014 in a hospital.Methods The related disease data were classified according to ICD-10 based on the first diagnosis.Descriptive statistics and rank-sum ratio(RSR) test were adopted to analyze the disease constitution and variation trends.Meanwhile,based on correlation coefficient method and Chi-square test,the variation trends of inpatients were illustrated,and the sex,age and clinical outcomes of the patients we...