Figure 2 | Genetics in Medicine

Figure 2

From: The clinical utility of DNA-based screening for fetal aneuploidy by primary obstetrical care providers in the general pregnancy population

Figure 2

Flowchart showing DNA First testing for trisomies 21, 18, and 13, along with additional testing for initial test failures and selected outcomes. Overall, 2,691 women agreed to testing and 2,685 samples had DNA sequencing. Of the 2,681 cfDNA tests reported, 0.6% (16) were screen-positive, 5.6% (150) failed to report at least one chromosome, and the remaining 93.8% (2,515) were screen-negative. FP, false positive; TP, true positive.

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