What do systematic reviews say?

Intervention not reported

• Drugs for preventing postoperative nausea and vomiting in adults after general anaesthesia: a network meta‐analysis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  14 studies · 1529 participants
  Low

Intervention not reported

• Drugs for preventing postoperative nausea and vomiting in adults after general anaesthesia: a network meta‐analysis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  10 studies · 1656 participants
  Low

Intervention not reported

• Drugs for preventing postoperative nausea and vomiting in adults after general anaesthesia: a network meta‐analysis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  2 participants
  GRADE not reported

Intervention not reported

• Drugs for preventing postoperative nausea and vomiting in adults after general anaesthesia: a network meta‐analysis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 904 participants
  Low

Intervention not reported

• Drugs for preventing postoperative nausea and vomiting in adults after general anaesthesia: a network meta‐analysis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  22 studies · 3679 participants
  Moderate

Intervention not reported

• Drugs for preventing postoperative nausea and vomiting in adults after general anaesthesia: a network meta‐analysis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 99 participants
  Low

Intervention not reported

• Drugs for preventing postoperative nausea and vomiting in adults after general anaesthesia: a network meta‐analysis 2020 · Cochrane Headline outcomes only
  no estimate extracted
  11 studies · 1313 participants
  Very low

Summary of findings: Specialist inpatient care for weight restoration vs active outpatient or combination brief hospital/outpatient care

Summary of findings: Specialist inpatient care for weight restoration showed no clear difference in weight or BMI (at end of 12 months from the start of treatment) compared with active outpatient or combination brief hospital/outpatient care (low certainty).

• Inpatient versus outpatient care, partial hospitalisation and waiting list for people with eating disorders 2019 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 232 participants
  Low

Summary of findings: Specialist inpatient care for weight restoration vs active outpatient or combination brief hospital/outpatient care

It is very uncertain whether summary of findings: Specialist inpatient care for weight restoration changes acceptability: number of participants who completed treatment (at… compared with active outpatient or combination brief hospital/outpatient care (very low certainty).

• Inpatient versus outpatient care, partial hospitalisation and waiting list for people with eating disorders 2019 · Cochrane Headline outcomes only
  RR 0.75 [0.64, 0.88]
  3 studies · 319 participants
  Very low

Ultrasound guidance vs no ultrasound

Ultrasound guidance showed no clear difference in failed blocks compared with no ultrasound guidance (moderate certainty).

• The use of ultrasound guidance for perioperative neuraxial and peripheral nerve blocks in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  22 studies · 1789 participants
  Moderate

Ultrasound guidance vs no ultrasound

• The use of ultrasound guidance for perioperative neuraxial and peripheral nerve blocks in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  15 studies · 982 participants
  Moderate

Ultrasound guidance vs no ultrasound

• The use of ultrasound guidance for perioperative neuraxial and peripheral nerve blocks in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  10 studies · 460 participants
  High

Ultrasound guidance vs no ultrasound

• The use of ultrasound guidance for perioperative neuraxial and peripheral nerve blocks in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  9 studies · 680 participants
  Moderate

Ultrasound guidance vs no ultrasound

• The use of ultrasound guidance for perioperative neuraxial and peripheral nerve blocks in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  3 studies · 256 participants
  Very low

Ultrasound guidance vs no ultrasound

Ultrasound guidance showed no clear difference in minor complications compared with no ultrasound guidance (low certainty).

• The use of ultrasound guidance for perioperative neuraxial and peripheral nerve blocks in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  13 studies · 896 participants
  Low

Ultrasound guidance vs no ultrasound

Ultrasound guidance showed no clear difference in major complications compared with no ultrasound guidance (moderate certainty).

• The use of ultrasound guidance for perioperative neuraxial and peripheral nerve blocks in children 2019 · Cochrane Headline outcomes only
  RD 0
  22 studies · 1576 participants
  Moderate

Group 1 Pulmonary arterial hypertension ‐ PDE5i vs placebo, on combination therapy

• Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
  no estimate extracted
  4 studies · 509 participants
  Moderate

Group 1 Pulmonary arterial hypertension ‐ PDE5i vs placebo, on combination therapy

Group 1 Pulmonary arterial hypertension ‐ PDE5i showed no clear difference in mortality compared with placebo, on combination therapy (moderate certainty).

• Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
  OR 0.26 [0.07, 1.06]
  3 studies · 492 participants
  Moderate

Group 1 Pulmonary arterial hypertension ‐ PDE5i vs placebo, on combination therapy

• Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 267 participants
  Moderate

Group 1 Pulmonary arterial hypertension ‐ PDE5i vs placebo, on combination therapy

• Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 387 participants
  High