• Population: Outpatients, 81% with metastatic cancer. Please use with caution in non-cancer patients. For non-cancer patients, the Walter Index may be more appropriate.
• Outcome: Median Survival in days
• Scroll to the bottom for more detailed information

• The Palliative Performance Scale (PPS) has been shown to be both valid and useful for a broad range of palliative care patients: those with advanced cancer diagnoses or life-threatening non-cancer diagnoses in clinics, hospitals, or hospices.
• The PPS scale¹ was developed in 119 palliative care patients at home (73% with PPS rating between 40-70%) and 213 patients admitted to a hospice unit (83% with PPS rating between 20-50% on admission) in Victoria, British Columbia.
• Prognostic estimates for outpatients with advanced cancer were externally validated in a study² of 1,655 adults from an outpatient Oncology Palliative Care Clinic in Toronto, Ontario, Canada between April 2007 and February 2010 (median age of 65 years, 51% female, 91% of patients had died at time of analysis).
• Discrimination: This risk calculator indicates modest predictive performance (c-statistic=0.63) using the PPS.
  
• Calibration: Calibration was not assessed.
• Citations:
  1. Anderson F, Downing GM, Hill J, Casorso L, Lerch N. Palliative Performance scale (PPS): a new tool. J Pall Care, 12(1): 5-11
  2. Jang RW, Caraiscos VB, Swami N, Banerjee S, Mak E, Kaya E, Rodin G, Bryson J, Ridley JZ, Le LW, Zimmermann C. Simple Prognostic Model for patients with advanced cancer based on performance status. J Clin Oncol. 2014; 10(5): 335-341.

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