Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

405 questions · 407 findings · 32 reviews · Airways

No studies found 31 · 7.6%GRADE not reported 25 · 6.1%Very low 27 · 6.6%Low 122 · 30%Moderate 148 · 36.4%High 54 · 13.3%

Intervention not reported

Patients with ≥ 1 exacerbations requiring oral corticosteroids Duration of trials: 6 to 16 weeks · adults and adolescents with persistent asthma

The intervention probably leads to lower patients with ≥ 1 exacerbations requiring oral corticosteroids… (moderate certainty).

1 finding from 1 review

Intervention not reported

Participants with ≥ 1 exacerbation requiring oral corticosteroids Duration of trials: 8 to 24 weeks · adults and adolescents with persistent asthma

The intervention showed no clear difference in participants with ≥ 1 exacerbation requiring oral corticosteroids… (low certainty).

1 finding from 1 review

Intervention not reported

Patients with ≥ 1 exacerbation requiring oral corticosteroids Duration of trials: 8 to 13 weeks · adults and adolescents with persistent asthma

The intervention showed no clear difference in patients with ≥ 1 exacerbation requiring oral corticosteroids… (moderate certainty).

1 finding from 1 review

Stopping LABA vs continuing use of LABA+ICS

Rate of exacerbations requiring systemic corticosteroids · adults with asthma well controlled on LABA and ICS

Stopping LABA showed no clear difference in exacerbation: systemic corticosteroids 17 weeks compared with continuing use of LABA+ICS (moderate certainty).

1 finding from 1 review

Anti‐leukotrienes & ICS vs same‐dose ICS

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 same dose ICS (low 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

Intermittent 'as needed' ICS vs daily ICS

Number of participants experiencing one or more episode requiring treatment with oral steroids · Children and adults with persistent asthma.

Intermittent 'as needed' ICS showed no clear difference in patients with 1 or more exacerbations requiring oral corticosteroids… compared with daily ICS (low certainty).

1 finding from 1 review

Intermittent ICS vs placebo

Exacerbations requiring oral corticosteroids ‐ School‐age children · School‐aged children and adults

Intermittent ICS showed no clear difference in exacerbations requiring oral corticosteroids ‐ School‐age children compared with placebo (low certainty).

1 finding from 1 review