Sanchez‐Usabiaga 2015.

Trial name or title	Clinical implementation of non‐invasive prenatal study for detecting aneuploidies by fetal DNA based on single nucleotide polymorphisms: 2 years in Mexico.
Target condition and reference standard(s)	Target conditions: T21, T18, T13, 45,X, 47,XXY, 47,XYY and 47,XXX. Reference standards: fetal karyotype of chorionic villi or amniotic fluid or medical record from birth.
Index and comparator tests	gNIPT by TPMS. Commercial test: Natera’s prenatal test.
Starting date	Recruitment period: March 2013 to February 2015.
Contact information	Dr. Rafael Sánchez Usabiaga rsanchez@medicafertil.com.mx
Aim to study	To describe our experience of 2 years integrating gNIPT by ccfDNA in its variant of single nucleotide polymorphism (SNPs) as a screening method for the detection of common aneuploidies, since 9 weeks of gestation.
Funding source or sponsor of the study	Not reported but Natera, Inc. made gNIPT sequencing and analyses.
Information about the authors contacted	No need for further contact.
Notes	There are 270 pregnant women included in this study.