International Business Machines Corporation
GROUP-BASED STRATIFIED TRAJECTORY MODELING

Abstract:

A computer-implemented method, a computer program product, and a computer system for tracking progression of chronic conditions. A computer acquires trajectories of estimated glomerular filtration rates of respective patients. The computer determines a number of trajectory parts in each of the trajectories. The computer generates, in each of response vectors of the trajectories, subsets corresponding to respective ones of the trajectory parts. The computer replaces responses in the response vectors with the subsets. The computer determine, in the respective ones of the trajectory parts, numbers of patient groups. The computer calculates probabilities of the respective patients belonging to respective ones of the patient groups, based on the subsets. The computer clusters the respective patients into the respective ones of the patient groups, based on the probabilities. Information of clustering the patient groups is used to identify risk groups for renal functions.