Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,072 questions · 4,237 findings · 447 reviews · Headline outcomes only

No studies found 946 · 22.3%GRADE not reported 257 · 6.1%Very low 1,121 · 26.5%Low 1,207 · 28.5%Moderate 568 · 13.4%High 138 · 3.3%

Tranexamic acid vs placebo (saline solution or sterile water)

Overall rate of surgical complications · adults and children with chronic rhinosinusitis with or without nasal polyps

Tranexamic acid showed no clear difference in surgical complications compared with placebo (saline solution or sterile water) (moderate certainty).

1 finding from 1 review

Summary of findings table ‐ Remifentanil vs diazepam

Surgical assessment/satisfaction score = 1 or 2 (Technically successful procedure as defined by trial authors) · health problem or population

Summary of findings table ‐ Remifentanil may leads to higher surgical assessment/satisfaction score = 1 or 2 (Technically… compared with diazepam (low certainty).

1 finding from 1 review

Summary of findings table ‐ Remifentanil vs diazepam

Maternal OAA score (observer assessment of alertness/sedation) < 4 (Maternal sedation measured using sedation scores as defined by authors) · health problem or population

Summary of findings table ‐ Remifentanil may leads to lower maternal OAA score (observer assessment of alertness/sedation) < 4… compared with diazepam (low certainty).

1 finding from 1 review

Intervention not reported

BMI loss (kg/m²) · children and adolescents with obesity

It is very uncertain whether the intervention changes BMI loss (kg/m²) (very low certainty).

1 finding from 1 review

Intervention not reported

Weight loss (kg) · children and adolescents with obesity

It is very uncertain whether the intervention changes weight loss (kg) (very low certainty).

1 finding from 1 review

Intervention not reported

Health‐related quality of life (CHQ (8 subscores); scale 0 to 100, where 0 indicates the worst possible health state and 100 the best possible health state)c Physical functioning Change in health · children and adolescents with obesity

It is very uncertain whether the intervention changes health‐related quality of life (CHQ (8 subscores); scale 0 to 100,… (very low certainty).

1 finding from 1 review