Table 2.

Summary of real reference samples, including cfDNA concentration, number of genes in the targeted panel, approximate number of generated paired-end reads and the approximate, per-base, average read coverage. Coverage is not uniform and may vary significantly between genes

Sample	cfDNA	# Genes	# Reads	Average read coverage
Horizon Run 1	20 ng/μl	18	79 million	∼151 000×
Horizon Run 2	20 ng/μl	18	46 million	∼85 000×
SeraCare Run1	10 ng/μl	18	33–56 million	∼87 000×
SeraCare Run2	10 ng/μl	18	44–48 million	∼85 000×