Table 2.

Prevalence of RAS mutations, TEL-AML1 gene rearrangement, and DNA index in ALL cases with or without mutations in PTPN11



Cases analyzed for PTPN11 mutations


Total no. of cases (%)
No. of cases without mutations (%)
No. of cases with mutations (%)
P
RAS mutations      
Common ALL     
Positive   40 (26.9)   39 (29.8)   1 (5.6)   
Negative   109 (73.1)   92 (70.2)   17 (94.4)   
Total   149   131   18   .043 
B-cell precursor ALL     
Positive   64 (24.9)   63 (26.7)   1 (4.8)   
Negative   193 (75.1)   173 (73.3)   20 (95.2)   
Total   257   236   21   .026 
TEL-AML1     
Common ALL     
Positive   43 (24.9)   43 (27.7)   0   
Negative   130 (75.1)   112 (72.3)   18 (100)   
Total   173   155   18   .007 
B-cell precursor ALL     
Positive   66 (22.8)   66 (24.4)   0   
Negative   223 (77.2)   204 (75.6)   19 (100)   
Total   289   270   19   .009 
DNA index      
Common ALL     
Less than or equal to 1*  114 (63.3)   106 (65.8)   8 (42.1)   
Greater than 1   66 (36.7)   55 (34.2)   11 (57.9)   
Total   180   161   19   .042 
B-cell precursor ALL     
Less than or equal to 1*  206 (66.9)   198 (69.2)   8 (36.4)   
Greater than 1   102 (33.1)   88 (30.8)   14 (63.6)   
Total
 
308
 
286
 
22
 
.002
 


Cases analyzed for PTPN11 mutations


Total no. of cases (%)
No. of cases without mutations (%)
No. of cases with mutations (%)
P
RAS mutations      
Common ALL     
Positive   40 (26.9)   39 (29.8)   1 (5.6)   
Negative   109 (73.1)   92 (70.2)   17 (94.4)   
Total   149   131   18   .043 
B-cell precursor ALL     
Positive   64 (24.9)   63 (26.7)   1 (4.8)   
Negative   193 (75.1)   173 (73.3)   20 (95.2)   
Total   257   236   21   .026 
TEL-AML1     
Common ALL     
Positive   43 (24.9)   43 (27.7)   0   
Negative   130 (75.1)   112 (72.3)   18 (100)   
Total   173   155   18   .007 
B-cell precursor ALL     
Positive   66 (22.8)   66 (24.4)   0   
Negative   223 (77.2)   204 (75.6)   19 (100)   
Total   289   270   19   .009 
DNA index      
Common ALL     
Less than or equal to 1*  114 (63.3)   106 (65.8)   8 (42.1)   
Greater than 1   66 (36.7)   55 (34.2)   11 (57.9)   
Total   180   161   19   .042 
B-cell precursor ALL     
Less than or equal to 1*  206 (66.9)   198 (69.2)   8 (36.4)   
Greater than 1   102 (33.1)   88 (30.8)   14 (63.6)   
Total
 
308
 
286
 
22
 
.002
 
*

Four cases (2 common, 1 pre-B, and 1 pre-B/B) exhibited DNA index less than 1.

Significance of Fisher exact test.

Significance of Pearson χ2 test.

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