A New Model for Providing Cell-Free DNA and Risk Assessment for Chromosome Abnormalities in a Public Hospital Setting

Table 2

Nuchal translucency screen positive results and outcomes: 2012 verses 2013.

	Epoch 1: January–September 2012 𝑁=683	Epoch 2: January–September 2013 𝑁=521	𝑃 value
Screen positive	14 (2.0%)	13 (2.5%)	0.56
Nuchal translucency ≥3.5 mm	1 (0.1%)	2 (0.4%)	0.28
Congenital heart disease	0 (0%)	1 (0.2%)	0.24
Aneuploidy (Turner's = 1)	0 (0%)	1 (0.2%)	0.24

Data reported as 𝑛 (%).