Abstract: A computer-implemented method for determining at least one secondary hyperparathyroidism risk factor (“SHPT”) for a patient is implemented using a risk evaluation computer system in communication with a memory. The method includes receiving a plurality of demographic data associated with a patient from a mobile computing device, receiving a concentration of a renal filtration marker associated with the patient from the mobile computing device, and determining at least one SHPT risk factor for the patient based on the plurality of demographic data and the concentration of the renal filtration marker using at least one estimating equation, the SHPT risk factor indicating a likelihood that the patient has SHPT.