Table 2.

Prognostic Models for Patients With Advanced Cancer (International Prognostic Index [IPI]) .

Models	Variables	Scoring	Survival Interpretation
Palliative Prognostic Score (PPS)	Clinical prediction of survival (0-8.5) Karnofsky performance scale ≥50% (2.5) Anorexia (1.5) Dyspnea (1) Leukocytosis (0-1.5)	Total score 0-17.5 points Higher score = worse survival	Risk group A (0-5.5 points): months of survival Risk group B (5.6-11 points): weeks of survival Risk group C (11.1-17.5 points): days of survival