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Table 3.

Association of histopathologic variables and number of aberrations with the cluster groups identified by the unsupervised hierarchical cluster analysis

Group I (n = 11)Group II (n = 15)*Group III (n = 14)*P
Histology     
    ILC 10 0.02 
    IDC  
ER     
    Positive 13 14 0.005 
    Negative  
Grading     
    1 — 0.004 
    2 11  
    3  
Aberrations 10.2% 11.3% 21.3% <0.001 
Gains 7.9% 5.1% 10.7% <0.001 
Losses 2.3% 6.2% 10.6% <0.001 
Group I (n = 11)Group II (n = 15)*Group III (n = 14)*P
Histology     
    ILC 10 0.02 
    IDC  
ER     
    Positive 13 14 0.005 
    Negative  
Grading     
    1 — 0.004 
    2 11  
    3  
Aberrations 10.2% 11.3% 21.3% <0.001 
Gains 7.9% 5.1% 10.7% <0.001 
Losses 2.3% 6.2% 10.6% <0.001 
*

Group II contains tumor ILC.341 with unknown ER and Her2neu status, and tumor IDC.327 with unknown Her2neu status. Group III contains tumor 350, which exhibits both histologies.

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