Early showed no clear difference in known false negative after birth ‐ Incorrect sex determination compared with second trimester amniocentesis (moderate certainty).
The review found no eligible studies for this question.
Early leads to higher anomalies (all recorded) compared with second trimester amniocentesis (high certainty).
Transabdominal chorionic villus sampling showed no clear difference in all known pregnancy loss (including termination of pregnancy) compared with second trimester amniocentesis (low certainty).
Transabdominal chorionic villus sampling showed no clear difference in spontaneous miscarriage compared with second trimester amniocentesis (low certainty).
The review found no eligible studies for this question.
The review found no eligible studies for this question.
Second trimester amniocentesis leads to higher spontaneous miscarriage compared with control (high certainty).
The review found no eligible studies for this question.
The review found no eligible studies for this question.
Transabdominal chorionic villus sampling showed no clear difference in perinatal deaths (stillbirths and neonatal deaths in the first week… compared with second trimester amniocentesis (low certainty).
It is very uncertain whether transcervical changes all known pregnancy loss (including termination of pregnancy) compared with transabdominal chorionic villus sampling (very low certainty).
It is very uncertain whether transcervical changes spontaneous miscarriage compared with transabdominal chorionic villus sampling (very low certainty).
Transcervical probably leads to higher sampling failure compared with transabdominal chorionic villus sampling (moderate certainty).
Transcervical showed no clear difference in laboratory failure compared with transabdominal chorionic villus sampling (low certainty).
The review found no eligible studies for this question.
The review found no eligible studies for this question.
Transcervical showed no clear difference in anomalies (all recorded) compared with transabdominal chorionic villus sampling (low certainty).
The review found no eligible studies for this question.
Early amniocentesis showed no clear difference in all known pregnancy loss (including termination of pregnancy) compared with transabdominal chorionic villus sampling (low certainty).