Table 5.

Association between potential productive rearrangement and clonality in childhood ALL


Clonality

Potential productive (%)

Potential nonproductive (%)

Mixed with productive and nonproductive
No. of cases   59   239   19  
One IgH sequence   57 (97)   199 (83)   —  
More than 1 IgH sequence
 
2 (3)
 
40 (17)
 
19
 

Clonality

Potential productive (%)

Potential nonproductive (%)

Mixed with productive and nonproductive
No. of cases   59   239   19  
One IgH sequence   57 (97)   199 (83)   —  
More than 1 IgH sequence
 
2 (3)
 
40 (17)
 
19
 

P = .006 by the Fisher exact test. — indicates association between detection of more than 1 IgH sequence and potential nonproductive rearrangement.