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Table 4 Multivariate analyses with covariance in total length of copy number aberrations in breast cancers.

From: Significance of genomic instability in breast cancer in atomic bomb survivors: analysis of microarray-comparative genomic hybridization

Source of Variation DF* Mean Squares F-value P-value*
A-bomb exposure 1 20.59 11.62 0.005
HER2 amplification (FISH) 1 0.65 0.37 0.556
C-MYC amplification (FISH) 1 4.14 2.34 0.152
Histological Grade 1 1.06 0.60 0.454
Age at the time of diagnosis 1 2.35 1.32 0.272
Storage time (years) 1 8.78 4.96 0.046
DLRSpread 1 3.77 2.13 0.170
  1. *Degrees of Freedom