Performance Scale


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More Specific Terms



  • affects decisions regarding therapy for cancer patients
  • less important than cancer stage for determining prognosis [1]
  • low performance status is the best predictor of poor prognosis in patients with advanced cancer [2,3,4,5]


  • virtually all clinical oncology trials enroll only patients with good performance status

More General Terms

Additional Terms


  1. Medical Knowledge Self Assessment Program (MKSAP) 17, American College of Physicians, Philadelphia 2015
  2. Geriatric Review Syllabus, 9th edition (GRS9) Medinal-Walpole A, Pacala JT, Porter JF (eds) American Geriatrics Society, 2016
  3. Kim AS, Youn CH, Ko HJ, Kim HM. The survival time of terminal cancer patients: prediction based on clinical parameters and simple prognostic scores. J Palliat Care. 2014 Spring;30(1):24-31. PMID: [1]
  4. Krishnan M, Temel JS, Wright AA et al Predicting life expectancy in patients with advanced incurable cancer: a review. J Support Oncol. 2013 Jun;11(2):68-74. Review. PMID: [2]
  5. Seow H, Barbera L, Sutradhar R Trajectory of performance status and symptom scores for patients with cancer during the last six months of life. J Clin Oncol. 2011 Mar 20;29(9):1151-8. PMID: Free Article&dopt=Abstract

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