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Number of invasive procedures performed in successive pregnancies within the cohort
| Number of PND’s undertaken | Number per category | Percentage |
|---|---|---|
| Single request for PND | 90 | 60.80% |
| Repeated PND twice | 42 | 28.40% |
| Repeated PND three times | 6 | 4.05% |
| Repeated PND four times | 4 | 2.70% |
| Repeated PND due to analysis failure | 6 | 4.05% |
| Total | 148 | 100% |
PND, prenatal genetic diagnosis
