Findings

What do systematic reviews say?

2 questions · 2 findings · 1 reviews

No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 1 · 50%Moderate 0 · 0%High 1 · 50%

Laboratory failure · prenatal diagnosis

Early amniocentesis showed no clear difference in laboratory failure compared with transabdominal chorionic villus sampling (low certainty).

1 finding from 1 review

Amniocentesis and chorionic villus sampling for prenatal diagnosis 2017 · Cochrane Headline outcomes only
RR 0.74 [0.34, 1.63]
4 studies · 5566 participants
Low

Laboratory failure · prenatal diagnosis

Early leads to higher laboratory failure compared with second trimester amniocentesis (high certainty).

1 finding from 1 review

Amniocentesis and chorionic villus sampling for prenatal diagnosis 2017 · Cochrane Headline outcomes only
RR 9.76 [3.49, 27.26]
1 study · 4368 participants
High