Patient characteristics
| Factor . | % . | 
|---|---|
| At least 65 years old | 53 | 
| Male | 74 | 
| Performance status score | |
| 0 | 30 | 
| 1 | 44 | 
| 2 | 18 | 
| 3 | 7 | 
| 4 | 1 | 
| Organ involvement | |
| Cardiac | 50 | 
| Renal | 74 | 
| Neurologic | 36 | 
| Gastrointestinal | 13 | 
| Hepatic | 19 | 
| Number of organs/systems involved | |
| 1 | 29 | 
| 2 | 35 | 
| More than 2 | 36 | 
| Cardiac involvement | |
| Abnormal echocardiogram | 50 | 
| Congestive heart failure | 27 | 
| Laboratory features | |
| Serum creatinine level of at least 2.0 mg/dL | 28 | 
| Serum B2M level of at least 3.5 mg/L | 43 | 
| Serum albumin level less than 3.5 g/dL | 59 | 
| Serum alkaline phosphatase level greater than ULN | 31 | 
| Urine M protein level of at least 1 g/d | 39 | 
| Factor . | % . | 
|---|---|
| At least 65 years old | 53 | 
| Male | 74 | 
| Performance status score | |
| 0 | 30 | 
| 1 | 44 | 
| 2 | 18 | 
| 3 | 7 | 
| 4 | 1 | 
| Organ involvement | |
| Cardiac | 50 | 
| Renal | 74 | 
| Neurologic | 36 | 
| Gastrointestinal | 13 | 
| Hepatic | 19 | 
| Number of organs/systems involved | |
| 1 | 29 | 
| 2 | 35 | 
| More than 2 | 36 | 
| Cardiac involvement | |
| Abnormal echocardiogram | 50 | 
| Congestive heart failure | 27 | 
| Laboratory features | |
| Serum creatinine level of at least 2.0 mg/dL | 28 | 
| Serum B2M level of at least 3.5 mg/L | 43 | 
| Serum albumin level less than 3.5 g/dL | 59 | 
| Serum alkaline phosphatase level greater than ULN | 31 | 
| Urine M protein level of at least 1 g/d | 39 | 
Total number of patients in the study population = 87.
ULN indicates upper limit normal.