Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

885 questions · 903 findings · 72 reviews

No studies found 106 · 11.7%GRADE not reported 45 · 5%Very low 114 · 12.6%Low 238 · 26.4%Moderate 314 · 34.8%High 86 · 9.5%

160/4.5 mcg BDF single inhaler therapy vs current best practice

Withdrawals due to adverse events · adults with asthma not well controlled on ICS

160/4.5 mcg BDF single inhaler therapy probably leads to higher discontinuation due to adverse events compared with current best practice (moderate certainty).

1 finding from 1 review

Single inhaler therapy vs fixed dose ICS

Hospital admissions due to exacerbations: number of participants · adults with asthma not well controlled on ICS

Single inhaler therapy showed no clear difference in patients with exacerbations causing hospitalisation compared with fixed dose ICS (moderate certainty).

1 finding from 1 review

Single inhaler therapy vs fixed dose ICS

Rate of exacerbations requiring systemic corticosteroids · adults with asthma not well controlled on ICS

Single inhaler therapy leads to lower patients with exacerbations treated with oral steroids compared with fixed dose ICS (high certainty).

1 finding from 1 review

Intervention not reported

Clinical failure (proportion of participants who were not cured or substantially improved (> 70% reduction in cough severity measure) at · children with subacute cough following acute bronchiolitis

The intervention showed no clear difference in clinical failure (proportion of participants who were not cured or… (low 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 'as needed' ICS vs daily ICS

Patients with serious adverse health events (duration 12 to 52 weeks) · Children and adults with persistent asthma.

Intermittent 'as needed' ICS showed no clear difference in patients with serious adverse health events (duration 12 to 52 weeks) compared with daily ICS (low certainty).

1 finding from 1 review

Intermittent 'as needed' ICS vs daily ICS

Patients with at least 1 exacerbation requiring emergency department/acute care visit (duration 12 to 52 weeks) · Children and adults with persistent asthma.

Intermittent 'as needed' ICS showed no clear difference in patients with at least 1 exacerbation requiring emergency… compared with daily ICS (low certainty).

1 finding from 1 review

Intermittent 'as needed' ICS vs daily ICS

Change from baseline AM PEFR (%) (duration 44 to 52 weeks) · Children and adults with persistent asthma.

Intermittent 'as needed' ICS showed no clear difference in change from baseline AM PEFR (%) (duration 44 to 52 weeks) compared with daily ICS (moderate certainty).

1 finding from 1 review

Intermittent 'as needed' ICS vs daily ICS

Change from baseline mean daily use of β2‐agonists (puffs/day) (duration 24 to 44 weeks) · Children and adults with persistent asthma.

Intermittent 'as needed' ICS showed no clear difference in change from baseline mean daily use of β2‐agonists (puffs/day)… compared with daily ICS (moderate certainty).

1 finding from 1 review