AMP
  Asymptomatic Myeloma Prognosis Risk stratification of asymptomatic (smoldering) myeloma
               
Points
Risk group Marrow plasma cells (%) M protein level (g/L) Median TTP (y)
Marrow plasma cells (%)
Low < 10 > 30 19
M protein level (g/L)
Inter­mediate ≥ 10 < 30 8
High ≥ 10 ≥ 30 2
Risk category