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. Author manuscript; available in PMC: 2015 Dec 2.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2013 Mar 20;86(3):504–509. doi: 10.1016/j.ijrobp.2013.02.012

Table 1.

Radiation Therapy Oncology Group recursive partitioning analysis classification system and criteria

RTOG RPA Class Criteria
III Age < 50 y, KPS 90–100
IV Age < 50 y, KPS < 90
Age ≥ 50 y, KPS ≥ 70, tumor resected, patient working
V Age ≥ 50 y, KPS ≥ 70, tumor resected, patient not able to work
Age ≥ 50 y, KPS ≥ 70, tumor not resected, RT dose > 54.4 Gy
Age ≥ 50 y, KPS < 70, mental status normal
VI Age ≥ 50 y, KPS ≥ 70, tumor not resected, RT
dose ≤ 54.4 Gy
Age ≥ 50 y, KPS < 70, mental status abnormal

Abbreviations: KPS = Karnofsky performance status; RT = radiation therapy; RTOG RPA = Radiation Therapy Oncology Group recursive partitioning analysis.