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. Author manuscript; available in PMC: 2020 Feb 1.
Published in final edited form as: Mol Cancer Res. 2018 Oct 24;17(2):457–468. doi: 10.1158/1541-7786.MCR-18-0946

Table 2:

ESR1 copy number alterations by ER status

ER status N n (%)
AMP Gain Total
ER+ 82 3 (3.7) 8 (9.8) 11 (13.4)*
ER− 52 0.00 1 (1.9) 1 (1.9)

Total 134 3 (2.2) 9 (6.7) 12 (9)
*

Fisher’s exact test, p =0.0192

N= number of samples included in the cohort; n and (%)= count and percentage of samples with alterations for the indicated site, respectively.