% | No | |
---|---|---|
Positive predictive value | 100 | 20/20 |
Negative predictive value | 99.6 | 222/223 |
Sensitivity | 95.2 | 20/21 |
Specifity | 100 | 222/222 |
False negative rate | 4.76 | 1/21 |
False positive rate | 0 | 0/223 |
↵2-150 Results are based on ploidy analysis by QF-PCR for chromosomes 13, 18, and 21, as compared with cytogenetic analysis. Cases with mosaicism or translocation were excluded.