Findings

What do systematic reviews say?

3 questions · 3 findings · 1 reviews · Airways

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 3 · 100%Moderate 0 · 0%High 0 · 0%

Intervention not reported

Death Duration of trials: 8 to 24 weeks · adults and adolescents with persistent asthma

The intervention showed no clear difference in death Duration of trials: 8 to 24 weeks (low certainty).

1 finding from 1 review

Addition of anti‐leukotriene agents to inhaled corticosteroids for adults and adolescents with persistent asthma 2017 · Cochrane Headline outcomes only
RR 3.1 [0.13, 75.1]
6 studies · 1100 participants
Low

Intervention not reported

Death Duration of trials: 6 to 16 weeks · adults and adolescents with persistent asthma

The intervention showed no clear difference in death Duration of trials: 6 to 16 weeks (low certainty).

1 finding from 1 review

Addition of anti‐leukotriene agents to inhaled corticosteroids for adults and adolescents with persistent asthma 2017 · Cochrane Headline outcomes only
RR 0.35 [0.01, 8.49]
2 studies · 761 participants
Low

Intervention not reported

Death Duration of trials: 12 to 13 weeks · adults and adolescents with persistent asthma

1 finding from 1 review

Addition of anti‐leukotriene agents to inhaled corticosteroids for adults and adolescents with persistent asthma 2017 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 834 participants
Low