Table 5 Chromosome location and NIPS detection efficiency
Chromosome Numbers | n | Prenatal diagnosis by CMA | PPV (%) | ||
|---|---|---|---|---|---|
n | TP | FP | |||
Chr1 | 7 | 4 | 2 | 2 | 50.0 |
Chr2 | 11 | 7 | 5 | 2 | 71.4 |
Chr3 | 10 | 4 | 2 | 2 | 50.0 |
Chr4 | 13 | 10 | 5 | 5 | 50.0 |
Chr5 | 7 | 6 | 3 | 3 | 50.0 |
Chr6 | 2 | 2 | 0 | 2 | 0.0 |
Chr7 | 38 | 3 | 0 | 3 | 0.0 |
Chr8 | 14 | 5 | 1 | 4 | 20.0 |
Chr9 | 9 | 6 | 0 | 6 | 0.0 |
Chr10 | 6 | 0 | 0 | 0 | 0.0 |
Chr11 | 4 | 2 | 0 | 2 | 0.0 |
Chr12 | 6 | 3 | 0 | 3 | 0.0 |
Chr13 | 8 | 8 | 5 | 3 | 62.5 |
Chr14 | 12 | 3 | 0 | 3 | 0.0 |
Chr15 | 5 | 3 | 1 | 2 | 33.3 |
Chr16 | 12 | 5 | 2 | 3 | 40.0 |
Chr17 | 11 | 7 | 4 | 3 | 57.1 |
Chr18 | 8 | 5 | 1 | 4 | 20.0 |
Chr20 | 10 | 2 | 1 | 1 | 50.0 |
Chr21 | 3 | 1 | 0 | 1 | 0.0 |
Chr22 | 16 | 10 | 5 | 5 | 50.0 |
Total | 212 | 96 | 37 | 59 | 38.5 |