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Percentage of trisomic cells from chromosome, microarray and FISH analyses
| Test | % of cells with + 18 | % of cells with + 21 | % of cells with + 21 and + mar | Normal cells |
|---|---|---|---|---|
| RCA (at birth) | 50 | 26.7 | 23.3 | 0% |
| Microarray (at birth) | 67 | 30 | 0 | 3% |
| FISH (at birth) | 66 | 21.5 | 0 | 12.5% |
| RCA (at 1 year) | 95 | 5 | 0 | 0% |
