Calculate Rpa grading for brain metastases | CMS & Clinical Guidelines

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RPA Class	Clinical Requirements	Median Survival (Months)
Class I	KPS ≥ 70, Age < 65 years, Controlled Primary, No Extracranial Metastases.	7.1
Class III	KPS < 70 (Regardless of all other factors).	2.3
Class II	All patients not in Class I or III.	4.2

RPA Class	Clinical Requirements	Median Survival (Months)
Class I	KPS ≥ 70, Age < 65 years, Controlled Primary, No Extracranial Metastases.	7.1
Class III	KPS < 70 (Regardless of all other factors).	2.3
Class II	All patients not in Class I or III.	4.2

RPA Grading for Brain Metastases