Treatment modalities of end-stage renal disease (ESRD) patients include in-center dialysis, home dialysis, and kidney transplant. We present a model to account for all aspects of modality use to aid in planning regional facilities. Five years of data for 979 patients on dialysis in Wisconsin between 1970 and 1975 are used. The model shows movement (transit probabilities) from one modality to another, eg, transition from in-center dialysis to transplantation, and data were used to derive all transitional probabilities characterizing patient movement from one modality to another. Model and probabilities were used to predict number of patients in each modality in 1976, and the model was used to predict number of patients in each treatment modality through 1990. These figures may be used for planning regional facilities. Extrapolation of this model and derived probabilities for nationwide projections may be possible.
(Arch Intern Med 138:1783-1786, 1978)