Revised International Prognostic Index (R-IPI)            
          Prognostic index for diffuse large B cell lymphoma
          1. Sum the number of risk factors    
Value Points
Risk factors
Age (years)
Age > 60 years
Raised LDH
Raised LDH
extranodal sites of disease (number)
Two or more extranodal sites of disease
Ann Arbor stage
Ann Arbor stage ≥ 3
ECOG Performance status
ECOG performance status 3 or higher
          2. Determine risk group and prognosis    
Risk factors Prognostic group 4 year PFS (%)
Sum of score       0 Good 94  
Risk category       1 or 2 Inter­mediate 80  
3, 4 or 5 Poor 53
Sehn LH, Berry B, Chhanabhai M, Fitzgerald C, Gill K, Hoskins P et al. The revised International Prognostic Index (R-IPI) is a better predictor of outcome than the standard IPI for patients with diffuse large B-cell lymphoma treated with R-CHOP. Blood 200