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Maternal age distribution among BWS-positive samples
| Samples | Number of samples by maternal agea | |
|---|---|---|
| < 35 | ≥ 35 | |
| CVS | 50 | 36 |
| Amniocentesis | 87 | 58 |
| CVS and amniocentesis | 137 | 94 |
| Positive (percentage) | 19 (13.9%) | 14 (14.9%) |
BWS Beckwith-Wiedemann syndrome
aNumber of samples for which maternal age data was available
