Palliative Performance Scale Predicts Survival in Patients with Bone Metastasis Undergoing Radiotherapy

The PPS is a valuable prognostic tool for patients receiving palliative RT for bone metastases. A PPS of ≥60% was associated with prolonged survival, supporting its use in clinical prognostication and treatment planning. Completion of RT emerged as a strong independent predictor of survival, underscoring the importance of treatment adherence even in palliative settings. Stratification by PPS further improved model validity and prognostic accuracy.