Table 2.

The International Staging System for multiple myeloma.10 

StageCriteriaMedian Overall Survival
I Serum β2-microglobulin < 3.5 mg/L AND Serum albumin ≥ 3.5 g/dL 62 months 
II Neither stage I or stage III 44 months 
III Serum β2-microglobulin ≥ 5.5 mg/L 29 months 
StageCriteriaMedian Overall Survival
I Serum β2-microglobulin < 3.5 mg/L AND Serum albumin ≥ 3.5 g/dL 62 months 
II Neither stage I or stage III 44 months 
III Serum β2-microglobulin ≥ 5.5 mg/L 29 months 
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