Table 3.

Detection rates and false positive rates of major aneuploidies using NIPT (51, 57, 58)

Chromosome	Detection rate (%) 95 % CI	False positive rate (%) 95 % CI
Trisomy 21	99.2 (98.5–99.6)	0.09 (0.05–0.14)
Trisomy 18	96.3 (94.3–97.9)	0.13 (0.07–0.20)
Trisomy 13	91.0 (85–95.6)	0.13 (0.05–0.26)
Monosomy X	90.3 (85.7–94.2)	0.23 (0.14–0.34)

CI: confidence interval.