Table 2. Distribution of CNAs.

	Average gains	Average losses	Average total CNAs
WNY	32a	44	76
Belarus	42a	35	77
Age under median (⩽43)	43b	33c	76
Age over median (>43)	33b	45c	78
Small tumours (T1)	39	36	75
Large tumours (T2–T4)	37	40	77
Lymph node negative	39	37	76
Lymph node positive	35	41	76
Primary tumours	37	41	78
Lymph node metastases	40	33	73
ER positive	31	49	80
ER negative	37	37	74
HER2 negative	41d	35	76
HER2 positive	28d	46	74
Total	37	39	76

CNA=copy number aberrations; WNY=Western New York.

^aP=0.034.

^bP=0.039.

^cP=0.054.

^dP=0.037.