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Table 2 Positive and negative predictive values. The positive and negative predictive values of the NIPT results for fetal trisomy 21 for the PGM and Proton sequencers used in this study

From: Comparison of two high-throughput semiconductor chip sequencing platforms in noninvasive prenatal testing for Down syndrome in early pregnancy

Chip Positive predictive value (95 % CI) Negative predictive value (95 % CI)
318 of PGM 100.0 % (47.8–100.0 %) 100.0 % (96.2–100.0 %)
PI of Proton 100.0 % (47.8–100.0 %) 100.0 % (96.2–100.0 %)