Table 3.

Univariate analysis at diagnosis for time to progression to multiple myeloma in patients with solitary plasmacytoma of bone


Parameter

N

Hazard ratio

Confidence interval

P
Age   116   1.02   1.00-1.04   .078  
Male sex   116   0.62   0.33-1.18   .144  
Hemoglobin   116   0.93   0.80-1.10   .431  
Serum M spike     
    Positive   116   1.50   0.77-2.92   .235  
    Size   116   1.17   0.84-1.62   .360  
Urine M spike     
    Positive   105   2.55   1.33-4.89   .005  
    Size   105   0.70   0.31-1.62   .409  
Free light chain assay     
    Ratio less than 0.26 or more than 1.65   116   1.89   1.03-3.45   .039  
    Ratio less than 0.25 or more than 4.0   116   2.14   1.17-3.95   .014  
Elevated light chain   107   1.68   0.89-3.16   .107  
Reduced uninvolved Igs   60   0.80   0.41-1.57   .513  
Type of treatment   116   1.67   0.91-3.05   .095  
Site of plasmacytoma
 
115
 
1.37
 
0.33-5.68
 
.662
 

Parameter

N

Hazard ratio

Confidence interval

P
Age   116   1.02   1.00-1.04   .078  
Male sex   116   0.62   0.33-1.18   .144  
Hemoglobin   116   0.93   0.80-1.10   .431  
Serum M spike     
    Positive   116   1.50   0.77-2.92   .235  
    Size   116   1.17   0.84-1.62   .360  
Urine M spike     
    Positive   105   2.55   1.33-4.89   .005  
    Size   105   0.70   0.31-1.62   .409  
Free light chain assay     
    Ratio less than 0.26 or more than 1.65   116   1.89   1.03-3.45   .039  
    Ratio less than 0.25 or more than 4.0   116   2.14   1.17-3.95   .014  
Elevated light chain   107   1.68   0.89-3.16   .107  
Reduced uninvolved Igs   60   0.80   0.41-1.57   .513  
Type of treatment   116   1.67   0.91-3.05   .095  
Site of plasmacytoma
 
115
 
1.37
 
0.33-5.68
 
.662
 

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