Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,234 questions · 3,357 findings · 396 reviews

No studies found 803 · 23.9%GRADE not reported 270 · 8%Very low 757 · 22.5%Low 859 · 25.6%Moderate 486 · 14.5%High 182 · 5.4%

Anti‐vascular endothelial growth factor therapy vs conventional laser/cryotherapy

Recurrence of ROP (unit of analysis: eyes) · preterm infants with type 1 ROP

It is very uncertain whether anti‐vascular endothelial growth factor therapy changes recurrence of ROP (unit of analysis: eyes) compared with conventional laser/cryotherapy (very low certainty).

1 finding from 1 review

ATRA in addition to chemotherapy vs chemotherapy alone

Mortality (calculated instead of overall survival) · adults with acute myeloid leukaemia (AML) (non‐acute promyelocytic leukaemia (APL))

ATRA in addition to chemotherapy showed no clear difference in mortality (instead of overall survival) compared with chemotherapy only (moderate certainty).

1 finding from 1 review

ATRA in addition to chemotherapy vs chemotherapy alone

Mortality, relapse and progresses (instead of disease‐ or relapse‐free survival) · adults with acute myeloid leukaemia (AML) (non‐acute promyelocytic leukaemia (APL))

ATRA in addition to chemotherapy showed no clear difference in mortality, relapse and progresses (instead of disease‐ or… compared with chemotherapy only (moderate certainty).

1 finding from 1 review

ATRA in addition to chemotherapy vs chemotherapy alone

On‐study mortality · adults with acute myeloid leukaemia (AML) (non‐acute promyelocytic leukaemia (APL))

ATRA in addition to chemotherapy showed no clear difference in on‐study mortality compared with chemotherapy only (moderate certainty).

1 finding from 1 review

ATRA in addition to chemotherapy vs chemotherapy alone

Severe adverse effects (grade 3+): Infection · adults with acute myeloid leukaemia (AML) (non‐acute promyelocytic leukaemia (APL))

ATRA in addition to chemotherapy showed no clear difference in infection grade III/IV compared with chemotherapy only (moderate certainty).

1 finding from 1 review

ATRA in addition to chemotherapy vs chemotherapy alone

Grade 3 to 4 diarrhoea · adults with acute myeloid leukaemia (AML) (non‐acute promyelocytic leukaemia (APL))

It is very uncertain whether ATRA in addition to chemotherapy changes diarrhoea grade III/IV compared with chemotherapy only (very low certainty).

1 finding from 1 review

ATRA in addition to chemotherapy vs chemotherapy alone

Toxicity: grade 3 or 4 nausea ± vomiting · adults with acute myeloid leukaemia (AML) (non‐acute promyelocytic leukaemia (APL))

It is very uncertain whether ATRA in addition to chemotherapy changes nausea/vomiting grade III/IV compared with chemotherapy only (very low certainty).

1 finding from 1 review

ATRA in addition to chemotherapy vs chemotherapy alone

Cardiac toxicity grade III/IV · adults with acute myeloid leukaemia (AML) (non‐acute promyelocytic leukaemia (APL))

It is very uncertain whether ATRA in addition to chemotherapy changes cardiac toxicity grade III/IV compared with chemotherapy only (very low certainty).

1 finding from 1 review

Pembrolizumab vs chemotherapy alone

Brain tumour response rates: complete response (CR) and partial response (PR) combinedNo. of participants: 847(6 RCTs)

Pembrolizumab probably leads to higher response rate (partial and complete response) compared with chemotherapy (moderate certainty).

1 finding from 1 review

Standard care plus IV tranexamic acid vs placebo or usual care

Maternal mortality due to bleeding · women with primary postpartum haemorrhage following vaginal or caesarean birth

Standard care plus IV tranexamic acid showed no clear difference in maternal mortality due to bleeding compared with placebo or standard care alone (moderate certainty).

1 finding from 1 review

Standard care plus IV tranexamic acid vs placebo or usual care

Maternal mortality ‐ not reported · women with primary postpartum haemorrhage following vaginal or caesarean birth

Standard care plus IV tranexamic acid showed no clear difference in maternal mortality (all causes) compared with placebo or standard care alone (moderate certainty).

1 finding from 1 review

Standard care plus IV tranexamic acid vs placebo or usual care

Serious maternal morbidity · women with primary postpartum haemorrhage following vaginal or caesarean birth

Standard care plus IV tranexamic acid showed no clear difference in serious maternal morbidity (any) compared with placebo or standard care alone (high certainty).

1 finding from 1 review

Standard care plus IV tranexamic acid vs placebo or usual care

Maternal blood loss of 500 mL or greater · women with primary postpartum haemorrhage following vaginal or caesarean birth

Standard care plus IV tranexamic acid may leads to lower blood loss 500 mL or more after randomisation compared with placebo or standard care alone (low certainty).

1 finding from 1 review

Standard care plus IV tranexamic acid vs placebo or usual care

Blood transfusion · women with primary postpartum haemorrhage following vaginal or caesarean birth

Standard care plus IV tranexamic acid showed no clear difference in blood transfusion (any) compared with placebo or standard care alone (moderate certainty).

1 finding from 1 review