Table 1. Average number of copy number gains, losses and percent genome altered (PGA) across TCGA cancer types and the three exemplar tumors selected for our study.

TCGA			Exemplar tumors
Average of all tumors			Tumor 1			Tumor 2			Tumor 3
Cancer	Gains	Losses	Gains	Losses	PGA	Gains	Losses	PGA	Gains	Losses	PGA
BLCA	23	30	23	30	70%	22	25	72%	22	25	71%
BRCA	26	36	24	34	59%	27	33	67%	21	30	66%
CRC	24	42	27	48	27%	23	29	70%	22	30	69%
GBM	26	36	23	34	51%	19	33	73%	30	43	57%
HNSC	24	40	28	40	61%	24	30	55%	24	28	62%
KIRC	6	16	6	16	75%	7	15	57%	8	14	66%
LUAD	26	34	26	25	55%	26	30	63%	22	32	67%
LUSC	25	43	34	47	26%	31	34	68%	24	31	73%
UCEC	39	47	39	43	62%	38	38	59%	37	37	66%
OV	29	37	26	35	68%	28	34	74%	28	31	65%