Table 2.

Clinical prognostic criteria

Memorial Sloan Kettering Cancer Center Prognostic Criteria – version 1	Motzer 19996	Corrected serum calcium Hemoglobin Karnofsky performance status Lactate dehydrogenase Prior nephrectomy
Memorial Sloan Kettering Cancer Center Prognostic Criteria – version 2	Motzer 20024	Corrected serum calcium Hemoglobin Karnofsky performance status Lactate dehydrogenase Time from initial diagnosis to treatment with IFN-α
Cleveland Clinic	Mekhail 20059	Corrected serum calcium Hemoglobin Lactate dehydrogenase Presence of liver, lung, or retroperitoneal nodal metastasis Prior radiotherapy Time from initial diagnosis to treatment with IFN-α
French Prognostic Criteria	Escudier 200219	Alkaline phosphatase Corrected serum calcium Lactate dehydrogenase Number of metastatic sites Time from nephrectomy to metastatic disease