Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,230 questions · 1,303 findings · 326 reviews · Headline outcomes only

No studies found 73 · 5.6%GRADE not reported 21 · 1.6%Very low 497 · 38.1%Low 403 · 30.9%Moderate 245 · 18.8%High 64 · 4.9%

SiT for maintenance/relief vs higher‐dose ICS/LABA + SABA

Exacerbations requiring oral corticosteroids ‐ adults · Studies recruited adults and adolescents aged 12 and older with chronic asthma

SiT for maintenance/relief leads to lower patients with exacerbations requiring oral steroids compared with higher‐dose ICS/LABA + SABA (high certainty).

1 finding from 1 review

SiT for maintenance/relief vs higher‐dose ICS/LABA + SABA

Patients with serious adverse events · Studies recruited adults and adolescents aged 12 and older with chronic asthma

SiT for maintenance/relief showed no clear difference in patients with serious adverse events compared with higher‐dose ICS/LABA + SABA (moderate certainty).

1 finding from 1 review

SiT for maintenance/relief vs higher‐dose ICS/LABA + SABA

Patients with severe exacerbations (requiring hospitalisation or ER visit) · Studies recruited adults and adolescents aged 12 and older with chronic asthma

SiT for maintenance/relief leads to lower patients with severe exacerbations (requiring hospitalisation or ER… compared with higher‐dose ICS/LABA + SABA (high certainty).

1 finding from 1 review

Anti‐leukotrienes & ICS vs ICS dose increase

Number of participants experiencing one or more episode requiring treatment with oral steroids · children with asthma

Anti‐leukotrienes & ICS may leads to lower participants with one or more exacerbations requiring oral… compared with higher dose ICS (low certainty).

1 finding from 1 review

Prophylactic platelet transfusion at threshold of 10,000 vs higher transfusion threshold (20,000 or 30,000)

Bleeding: Numbers of patients with at least one significant bleeding event · People with a haematological disorder

Prophylactic platelet transfusion at threshold of 10,000 showed no clear difference in bleeding: Numbers of patients with at least one significant bleeding… compared with higher transfusion threshold (20,000 or 30,000) (moderate certainty).

1 finding from 1 review

Prophylactic platelet transfusion at threshold of 10,000 vs higher transfusion threshold (20,000 or 30,000)

Mortality: secondary to bleeding · People with a haematological disorder

Prophylactic platelet transfusion at threshold of 10,000 showed no clear difference in mortality: secondary to bleeding compared with higher transfusion threshold (20,000 or 30,000) (low certainty).

1 finding from 1 review