Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,454 questions · 3,562 findings · 816 reviews · Headline outcomes only

No studies found 538 · 15.1%GRADE not reported 239 · 6.7%Very low 933 · 26.2%Low 1,041 · 29.2%Moderate 612 · 17.2%High 199 · 5.6%

Viral influenza vaccine vs control

Neonatal hospitalisation due to sepsis within 28 days of birth · Pregnant women aged 18 to 38 years and an estimated gestation of 20 to 36 weeks.

Viral influenza vaccine showed no clear difference in neonatal hospitalisation due to sepsis within 28 days of birth compared with control (moderate certainty).

1 finding from 1 review

Any intermittent iron regimen (with or without other vitamins and minerals) vs daily regimen (with same vitamins and minerals)‐maternal outcomes

Neonatal mortality · Women receiving supplements in pregnancy

It is very uncertain whether any intermittent iron regimen (with or without other vitamins and… changes neonatal death (within 28 days after delivery) compared with daily regimen (with same vitamins and minerals)‐infant outcomes (very low certainty).

1 finding from 1 review

Any intermittent iron regimen (with or without other vitamins and minerals) vs daily regimen (with same vitamins and minerals)‐maternal outcomes

Maternal death · Women receiving supplements in pregnancy

Any intermittent iron regimen (with or without other vitamins and… led to lower maternal death (death while pregnant or within 42 days of… compared with daily regimen (with same vitamins and minerals)‐maternal outcomes; GRADE not reported.

1 finding from 1 review

Oral aciclovir (short‐term) vs placebo

Incidence of herpes labialis during use of the preventative intervention (by clinical evaluation) ‐ aciclovir 200 mg 5 times/day · participants with recurrent herpes labialis

Oral aciclovir (short‐term) showed no clear difference in incidence of herpes labialis during use of the preventative… compared with placebo (low certainty).

1 finding from 1 review

Cyanoacrylate 1 mL vs cyanoacrylate 0.5 mL

day ‐ mortality Mortality due to bleeding · acute bleeding gastric varices in people with portal hypertension

It is very uncertain whether cyanoacrylate 1 mL changes day ‐ mortality Mortality due to bleeding compared with cyanoacrylate 0.5 mL (very low certainty).

1 finding from 1 review

Early dressing removal vs delayed dressing removal

Postoperative superficial infections · people with surgical site infection

It is very uncertain whether early dressing removal changes superficial surgical site infection Superficial surgical site… compared with delayed dressing removal (very low certainty).

1 finding from 1 review

Early dressing removal vs delayed dressing removal

Superficial wound dehiscence · people with surgical site infection

It is very uncertain whether early dressing removal changes superficial wound dehiscence Superficial wound dehiscence reported… compared with delayed dressing removal (very low certainty).

1 finding from 1 review

Early dressing removal vs delayed dressing removal

Serious adverse events Patients experiencing serious adverse events within 30 days of surgery · people with surgical site infection

It is very uncertain whether early dressing removal changes serious adverse events Patients experiencing serious adverse events… compared with delayed dressing removal (very low certainty).

1 finding from 1 review

Preoperative inspiratory muscle training vs usual care, non‐exercise intervention

Mortality In the early postoperative period (≤ 30 days) · adult participants undergoing cardiac and major abdominal surgery

It is very uncertain whether preoperative inspiratory muscle training changes all‐cause mortality within 30 days during postoperative period compared with usual care, non‐exercise intervention (very low certainty).

1 finding from 1 review

Therapeutic or non‐prophylactic platelet transfusion vs prophylactic platelet transfusion

Number of participants with at least 1 bleeding episode · patients with haematological disorders undergoing myelosuppressive chemotherapy or stem cell transplantation
1 finding from 1 review