Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,584 questions · 3,695 findings · 567 reviews

No studies found 784 · 21.2%GRADE not reported 308 · 8.3%Very low 1,036 · 28%Low 971 · 26.3%Moderate 440 · 11.9%High 156 · 4.2%

Induction and maintenance: sevoflurane + nitrous oxide (N2O) vs propofol + N2O

Number of patients with postoperative nausea and vomiting (postoperative care unit) · paediatric

Induction and maintenance: sevoflurane + nitrous oxide (N2O) may leads to higher postoperative nausea and vomiting compared with propofol + N2O (low certainty).

1 finding from 1 review

Induction and maintenance: sevoflurane + nitrous oxide (N2O) vs propofol + N2O

Postoperative behavioural disturbances Different scales · paediatric

It is very uncertain whether induction and maintenance: sevoflurane + nitrous oxide (N2O) changes postoperative behavioural disturbances Different scales compared with propofol + N2O (very low certainty).

1 finding from 1 review

Induction and maintenance: sevoflurane + nitrous oxide (N2O) vs propofol + N2O

Intraoperative and postoperative respiratory and cardiovascular complications · paediatric

It is very uncertain whether induction and maintenance: sevoflurane + nitrous oxide (N2O) changes intraoperative and postoperative respiratory and cardiovascular… compared with propofol + N2O (very low certainty).

1 finding from 1 review

Maintenance anaesthesia: inhalational vs intravenous

Nausea and vomiting ‐ subgroup analysis: thiopentone or halothane + N2O versus propofol or propofol + N2O · paediatric

Maintenance anaesthesia: inhalational may leads to higher nausea and vomiting ‐ subgroup analysis: thiopentone or halothane +… compared with intravenous (low certainty).

2 findings from 1 review

Cyclophosphamide vs methylprednisolone

Response to treatment (20% improvement)* · patients with neuropsychiatric involvement in systemic lupus erythematosus

It is very uncertain whether cyclophosphamide changes response to treatment (20% improvement)* compared with methylprednisolone (very low certainty).

1 finding from 1 review

Cyclophosphamide vs methylprednisolone

Urinary tract infection · patients with neuropsychiatric involvement in systemic lupus erythematosus

It is very uncertain whether cyclophosphamide changes adverse events ‐ Urinary tract infections compared with methylprednisolone (very low certainty).

1 finding from 1 review

Cyclophosphamide vs methylprednisolone

Adverse events ‐ Death · patients with neuropsychiatric involvement in systemic lupus erythematosus

It is very uncertain whether cyclophosphamide changes adverse events ‐ Death compared with methylprednisolone (very low certainty).

1 finding from 1 review

Intervention not reported

Perioperative bleeding requiring non‐surgical intervention · patients with paediatric tonsillectomy

The intervention showed no clear difference in perioperative bleeding requiring non‐surgical intervention (moderate certainty).

1 finding from 1 review

Intervention not reported

the toxic and side effects in digestive system after chemotherapy (no special data in trial of Zhang 2006) · patients with induction of remission in advanced or late gastric cancer

It is very uncertain whether the intervention changes the toxic and side effects in digestive system after chemotherapy… (very low certainty).

1 finding from 1 review

Intervention not reported

the rate of complete remission and partly remission · patients with induction of remission in advanced or late gastric cancer

It is very uncertain whether the intervention changes the rate of complete remission and partly remission (very low certainty).

1 finding from 1 review