Concordance of Genomic Alterations between Circulating Tumor DNA and Matched Tumor Tissue in Chinese Patients with Breast Cancer

Table 1

Concordance of ERBB2 amplification for breast cancer.

		Tissues		Sensitivity	Specificity	Concordance
		(+)	(−)	(%)	(%)	(%)
ctDNA	(+)	2	1
	(−)	5	33	28.6	97.1	85.4