What do systematic reviews say?

Drape vs no drape

It is very uncertain whether drape changes metritis compared with no drape (very low certainty).

• Skin preparation for preventing infection following caesarean section 2020 · Cochrane Headline outcomes only
  RR 1.62 [0.29, 9.16]
  1 study · 79 participants
  Very low

Drape vs no drape

• Skin preparation for preventing infection following caesarean section 2020 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 603 participants
  Moderate

Drape vs no drape

The review found no eligible studies for this question.

• Skin preparation for preventing infection following caesarean section 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Drape vs no drape

Drape showed no clear difference in surgical site infection compared with no drape (low certainty).

• Skin preparation for preventing infection following caesarean section 2020 · Cochrane Headline outcomes only
  RR 1.29 [0.97, 1.71]
  3 studies · 1373 participants
  Low

Direct estimation using calibrated drapes vs indirect estimation using visual estimation

The review found no eligible studies for this question.

• Methods for blood loss estimation after vaginal birth 2018 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Direct estimation using calibrated drapes vs indirect estimation using visual estimation

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

• Methods for blood loss estimation after vaginal birth 2018 · Cochrane Headline outcomes only
  RR 0.82 [0.48, 1.39]
  1 study · 2999 participants
  Moderate

Direct estimation using calibrated drapes vs indirect estimation using visual estimation

The review found no eligible studies for this question.

• Methods for blood loss estimation after vaginal birth 2018 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Direct estimation using calibrated drapes vs indirect estimation using visual estimation

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

• 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 visual estimation

Direct estimation using calibrated drapes showed no clear difference in use of plasma expanders compared with indirect estimation using visual estimation (moderate certainty).

• Methods for blood loss estimation after vaginal birth 2018 · Cochrane Headline outcomes only
  RR 0.77 [0.42, 1.42]
  1 study · 3122 participants
  Moderate

Direct estimation using calibrated drapes vs indirect estimation using visual estimation

Direct estimation using calibrated drapes showed no clear difference in use of therapeutic uterotonics compared with indirect estimation using visual estimation (moderate certainty).

• Methods for blood loss estimation after vaginal birth 2018 · Cochrane Headline outcomes only
  RR 0.87 [0.42, 1.76]
  1 study · 593 participants
  Moderate

Direct estimation using calibrated drapes vs indirect estimation using visual estimation

The review found no eligible studies for this question.

• Methods for blood loss estimation after vaginal birth 2018 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Direct estimation using calibrated drapes vs indirect estimation using gravimetric technique

Direct measurement using calibrated drapes leads to higher blood loss ≥ 500 mL compared with indirect estimation using gravimetric technique (high certainty).

• Methods for blood loss estimation after vaginal birth 2018 · Cochrane Headline outcomes only
  RR 1.86 [1.11, 3.11]
  1 study · 900 participants
  High

Direct estimation using calibrated drapes vs indirect estimation using gravimetric technique

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

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

Direct estimation using calibrated drapes vs indirect estimation using gravimetric technique

Direct measurement using calibrated drapes showed no clear difference in use of plasma expanders compared with indirect estimation using gravimetric technique (low certainty).

• Methods for blood loss estimation after vaginal birth 2018 · Cochrane Headline outcomes only
  RR 0.67 [0.19, 2.35]
  1 study · 900 participants
  Low

Direct estimation using calibrated drapes vs indirect estimation using gravimetric technique

Direct measurement using calibrated drapes showed no clear difference in use of therapeutic uterotonics compared with indirect estimation using gravimetric technique (high certainty).

• Methods for blood loss estimation after vaginal birth 2018 · Cochrane Headline outcomes only
  RR 1.01 [0.9, 1.13]
  1 study · 900 participants
  High

Direct estimation using calibrated drapes vs indirect estimation using gravimetric technique

The review found no eligible studies for this question.

• Methods for blood loss estimation after vaginal birth 2018 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Direct estimation using calibrated drapes vs indirect estimation using gravimetric technique

The review found no eligible studies for this question.

• Methods for blood loss estimation after vaginal birth 2018 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Direct estimation using calibrated drapes vs indirect estimation using gravimetric technique

The review found no eligible studies for this question.

• Methods for blood loss estimation after vaginal birth 2018 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

The intervention leads to higher surgical site infection (all wound classifications) Inspection of… (high certainty).

• Use of plastic adhesive drapes during surgery for preventing surgical site infection 2015 · Cochrane Headline outcomes only
  RR 1.23 [1.02, 1.48]
  5 studies · 3082 participants
  High

Intervention not reported

The intervention showed no clear difference in surgical site infection Inspection of the wound1 ( (moderate certainty).

• Use of plastic adhesive drapes during surgery for preventing surgical site infection 2015 · Cochrane Headline outcomes only
  RR 1.03 [0.66, 1.6]
  2 studies · 1113 participants
  Moderate