Table 2 Common trisomies and fetal sex test results from participating laboratories in the 2018 NIPT Educational Survey.
Sample | FF Acceptable? | Chromosome 21 | Chromosome 18 | Chromosome 13 | Fetal sex | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NIPT- | Yes | No | Miss | Neg | Pos | Fail | Err | Neg | Pos | Fail | Err | Neg | Pos | Fail | Err | M | F | NR | Err | |
01 | 41 | 0 | 0 | 41 | 0 | 0 | 0 | 41 | 0 | 0 | 0 | 41 | 0 | 0 | 0 | 32 | 0 | 9 | 0 | |
02 | 41 | 0 | 0 | 1a | 40 | 0 | 0 | 41 | 0 | 0 | 0 | 41 | 0 | 0 | 0 | 16b | 16b | 9 | 0 | |
03 | 41 | 0 | 0 | 41 | 0 | 0 | 0 | 41 | 0 | 0 | 0 | 41 | 0 | 0 | 0 | 0 | 32 | 9 | 0 | |
Sum | 123 | 0 | 0 | 83a | 40 | 0 | 0 | 123 | 0 | 0 | 0 | 123 | 0 | 0 | 0 | 48 | 48 | 18 | 0 | |
04 | 46 | 3c | 2 | 47 | 0 | 4c | 0 | 47 | 0 | 4c | 0 | 47 | 0 | 4c | 0 | 0 | 39 | 13c | 0 | |
05 | 51 | 0 | 0 | 50 | 0 | 1d | 0 | 50 | 0 | 1d | 0 | 50 | 0 | 1d | 0 | 25b | 16b | 10 | 0 | |
06 | 48 | 1 | 2 | 46 | 0 | 5e | 0 | 46 | 0 | 5e | 0 | 46 | 0 | 5e | 0 | 20b,f | 19b | 12 | 0 | |
Sum | 145 | 4 | 4 | 143 | 0 | 10 | 0 | 143 | 0 | 10 | 0 | 143 | 0 | 10 | 0 | 45 | 74 | 35 | 0 | |
Total | 268 | 4 | 4 | 0 | 226 | 40 | 10 | 0 | 266 | 0 | 10 | 0 | 266 | 0 | 10 | 0 | 92 | 122 | 53 | 0 |