| Amnio | CVS | Total | |
|---|---|---|---|
| Item | n=419 | n=82 | n=501 |
| Insertions >1 | 5.8% | 18% | |
| Bloody taps | 8.0% | NA | |
| spontaneous abortion | 1 (0.24%) | 1 (1.2%)* | 2 (0.39%) |
| Stillbirths | 3 (0.7%)† | 0 | 3 (0.6%) |
| Neonatal Deaths | 6 (1.6%)‡ | 0 | 6 (1.2%) |
| TOP | 35 (8.3%) | 12 (14%) | 47 (9.4%) |
| Pregnancy losses (inc TOPs) | 39 (9.3%) | 13 (15.8%) | 52 (10.3%) |
| Pregnancy losses (exc TOPs) | 4 (0.95%) | 1 (1.2%) | 5 (1%) |
| Perinatal losses uncorrected | 9 (2.1%) | 0 | 9 (1.7%) |
| Perinatal losses corrected | 2 (0.47%) | 2 (0.39%) |