Fig. 2.

Correlation of the reference fetal fraction and SeqFF prediction from a uTOP-seq and b hmTOP-seq data indicates the enrichment of cffDNA in maternal cfDNA mixture. Dashed line indicates linear regression. hmTOP-seq samples of shallow sequencing (on average 2.5 million (M) raw reads) are indicated with red circles and were not used in the estimation of Pearson correlation