Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

154 questions · 163 findings · 21 reviews

No studies found 18 · 11%GRADE not reported 2 · 1.2%Very low 27 · 16.6%Low 61 · 37.4%Moderate 51 · 31.3%High 4 · 2.5%

Adults: formoterol/ICS vs salmeterol/ICS

All‐cause mortality ‐ formoterol and budesonide vs salmeterol and fluticasone · adults, chronic asthma: all‐cause mortality

Adults: formoterol/ICS showed no clear difference in all‐cause mortality ‐ formoterol/budesonide vs salmeterol/fluticasone compared with salmeterol/ICS (low certainty).

1 finding from 1 review

Adults: formoterol/ICS vs salmeterol/ICS

All‐cause non‐fatal serious adverse events ‐ formoterol/budesonide vs salmeterol/budesonide · adults, chronic asthma: all‐cause mortality

Adults: formoterol/ICS showed no clear difference in all‐cause non‐fatal serious adverse events ‐ formoterol/budesonide… compared with salmeterol/ICS (low certainty).

1 finding from 1 review

Adults: formoterol/ICS vs salmeterol/ICS

Asthma‐related non‐fatal serious adverse events · adults, chronic asthma: all‐cause mortality

Adults: formoterol/ICS showed no clear difference in asthma‐related non‐fatal serious adverse events ‐… compared with salmeterol/ICS (low certainty).

2 findings from 1 review

Adults: formoterol/ICS vs salmeterol/ICS

All‐cause non‐fatal serious adverse events ‐ formoterol and budesonide vs salmeterol and fluticasone · adults, chronic asthma: all‐cause mortality

Adults: formoterol/ICS showed no clear difference in all‐cause non‐fatal serious adverse events ‐ formoterol/budesonide… compared with salmeterol/ICS (moderate certainty).

1 finding from 1 review

Intervention not reported

Adverse events-serious events Budesonide/formoterol (BDF) versus budesonide (BD) · patients with COPD

It is very uncertain whether the intervention changes adverse events-serious events Budesonide/formoterol (BDF) versus… (very low certainty).

1 finding from 1 review

Combination fluticasone/salmeterol vs budesonide/formoterol

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

Combination fluticasone/salmeterol showed no clear difference in participants experiencing exacerbations requiring oral steroid… compared with budesonide/formoterol (moderate certainty).

1 finding from 1 review

Combination fluticasone/salmeterol vs budesonide/formoterol

Hospital admissions due to exacerbations: number of participants · adults and children with chronic asthma

Combination fluticasone/salmeterol showed no clear difference in participants experiencing exacerbations requiring admission to… compared with budesonide/formoterol (moderate certainty).

1 finding from 1 review

Combination fluticasone/salmeterol vs budesonide/formoterol

Asthma‐related serious adverse event · adults and children with chronic asthma

Combination fluticasone/salmeterol showed no clear difference in asthma‐related serious adverse event compared with budesonide/formoterol (moderate certainty).

1 finding from 1 review

Combination fluticasone/salmeterol vs budesonide/formoterol

Withdrawals due to adverse events · adults and children with chronic asthma

Combination fluticasone/salmeterol showed no clear difference in withdrawals (adverse events) compared with budesonide/formoterol (moderate certainty).

1 finding from 1 review