Table 1

Cohort characteristics

Low miR-650*High miR-650*P
Number n = 40 n = 40  
Median survival, mo 161.2 Not reached .025 
Median time to treatment, mo 33.9 60.4 .036 
Median age, y (range) 67.5 (46-85) 69 (40-85) .557 
F/M sex ratio 25/15 23/17 .857§ 
Disease stage at the time of sample analysis    
    Low/intermediated stage of the disease (Rai 0, I, II), n (%) 23 (57.5) 32 (80.0) .384§ 
    Advanced stage of the disease (Rai III, IV), n (%) 14 (34.0) 6 (15.0) .136§ 
    Not determined, n (%) 3 (7.5) 2 (5.0)  
Treatment prior to sample analysis    
    Previously treated, n (%) 21 (52.5) 16 (40.0) .554§ 
    Previously untreated, n (%) 16 (40.0) 24 (60.0) .336§ 
    Not determined, n (%) 3 (7.5) 0 (0.0)  
IgVH status    
    Unmutated IgVH, n (%) 28 (70.0) 19 (47.5) .358§ 
    Mutated IgVH, n (%) 11 (27.5) 20 (50.0) .205§ 
    Biclonal sample, n (%) 1 (2.5) 1 (2.5) 1.00§ 
Hierarchical cytogenetics (I-FISH)    
    Deletion 17p13, n (%) 7 (17.5) 4 (10.0) .525§ 
    Deletion 11q23, n (%) 8 (20.0) 5 (12.5) .554§ 
    Trisomy 12, n (%) 1 (2.5) 2 (5.0) 1 .00§ 
    Deletion 13q14, n (%) 13 (32.5) 17 (42.5) .67§ 
    Normal, n (%) 10 (25.0) 12 (30.0) .811§ 
    Not determined, n (%) 1 (2.5) 0 (0.0)  
Low miR-650*High miR-650*P
Number n = 40 n = 40  
Median survival, mo 161.2 Not reached .025 
Median time to treatment, mo 33.9 60.4 .036 
Median age, y (range) 67.5 (46-85) 69 (40-85) .557 
F/M sex ratio 25/15 23/17 .857§ 
Disease stage at the time of sample analysis    
    Low/intermediated stage of the disease (Rai 0, I, II), n (%) 23 (57.5) 32 (80.0) .384§ 
    Advanced stage of the disease (Rai III, IV), n (%) 14 (34.0) 6 (15.0) .136§ 
    Not determined, n (%) 3 (7.5) 2 (5.0)  
Treatment prior to sample analysis    
    Previously treated, n (%) 21 (52.5) 16 (40.0) .554§ 
    Previously untreated, n (%) 16 (40.0) 24 (60.0) .336§ 
    Not determined, n (%) 3 (7.5) 0 (0.0)  
IgVH status    
    Unmutated IgVH, n (%) 28 (70.0) 19 (47.5) .358§ 
    Mutated IgVH, n (%) 11 (27.5) 20 (50.0) .205§ 
    Biclonal sample, n (%) 1 (2.5) 1 (2.5) 1.00§ 
Hierarchical cytogenetics (I-FISH)    
    Deletion 17p13, n (%) 7 (17.5) 4 (10.0) .525§ 
    Deletion 11q23, n (%) 8 (20.0) 5 (12.5) .554§ 
    Trisomy 12, n (%) 1 (2.5) 2 (5.0) 1 .00§ 
    Deletion 13q14, n (%) 13 (32.5) 17 (42.5) .67§ 
    Normal, n (%) 10 (25.0) 12 (30.0) .811§ 
    Not determined, n (%) 1 (2.5) 0 (0.0)  
*

Median expression of miR-650 was used as a cut-off to divide patients in 2 groups.

Log-rank test.

t test (2-tailed).

§

Fisher exact test (2-tailed).

IgVH mutation status analyses, FISH, and hierarchical cytogenetics were performed as described previously.25 

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