Findings

What do systematic reviews say?

2 questions · 2 findings · 1 reviews

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

Direct estimation using calibrated drapes vs indirect estimation using visual estimation

Blood transfusion · women undergoing vaginal birth

Direct estimation using calibrated drapes showed no clear difference in blood transfusion compared with indirect estimation using visual estimation (moderate certainty).

1 finding from 1 review

Methods for blood loss estimation after vaginal birth 2018 · Cochrane Headline outcomes only
RR 0.82 [0.46, 1.46]
1 study · 5561 participants
Moderate

Direct estimation using calibrated drapes vs indirect estimation using gravimetric technique

Blood transfusion · women undergoing vaginal birth

Direct measurement using calibrated drapes showed no clear difference in blood transfusion compared with indirect estimation using gravimetric technique (low certainty).

1 finding from 1 review

Methods for blood loss estimation after vaginal birth 2018 · Cochrane Headline outcomes only
RR 1 [0.06, 15.94]
1 study · 900 participants
Low